Sony Dlt Iv Backup Data Tape Storage Medium

The Sony DLT-IV backup tapes are highly reliable and have high storage capacity. They are the top most preference of the enterprises over the world. They deliver the best results in the workstation data & server network. The financial institutes and the public sectors as well are mostly using the DLT-IV data backup tape format. The most important feature of the DLT-IV tape is that it powerful & fast and has new technology of “Half Inch Metal Particle”. The recording capacity is also very high up to 80GB (compressed rate). The data transfer speed is fast and the file access is also very quick. The performance of the DLT IV tape is high because of the “Metal Particle technology”. This new technology saves the space in the tape cartridge with single reel, therefore, the compressed recording capacity reaches to 80 Gigabytes. With the help of the“DLT8000 drive” flagship, the data transfer rate can is increased and the compressed rate reaches up to 12 Megabytes per second.

The DLT-IV tape has been added new and advanced feature of “Sony Binder”. This feature enhances the tape performance and reduces the tape reel’s wear with in contact with the head. The passes in the DLT-IV tapes reach up to 1 million. The DLT-IV tape has long durable life and is considered as one of the most reliable and stable data backup storage medium. The body of the Sony DLT-IV has been carefully engineered and manufactured. The tape to head interface is optimized through the “defect detection”.

In the automated systems the Sony’s DLT IV backup data media tape makes it easy to identify the media and the files can also be accessed more quickly. The precious data is protected and made safer, secured because the Sony DLT-IV cartridge has “labeling service”. This service saves the time and therefore, the performance along with the efficiency of the tape enhances. The migration to the system of higher storage capacity is easy because the DLT technology based systems are backward read compatible. In this way the cost can is also reduced when the system is upgraded. The DLT-IV makes the data safe and secure. It has the new, advanced “correction & error detection” technology along with the “multi track redundancy”.

The tape reel’s wear & tear during the contact with the tape head is also reduced due to the “adaptive mechanism”. In order to keep the performance of the tape consistent, the tape drive heads should be kept clean. So, the Sony has developed the cleaning tape “DL3-CL”. This Sony cleaning tape is compatible with all the Digital linear tape (DLT) drives and provides the best results. The cleaning tape gives up to twenty cleanings. The cleaning should be done regularly. The cleaning should be done when the tape drive’s “cleaning lamp” illuminates.

Sony has developed and introduced many popular, reliable data storage mediums like the ½ half inch tape, AIT (Advanced Intelligent Tape) tape, Super AIT tape, Digital Linear Tape (DLT), Linear Tape Open (LTO) format. These data storage mediums are considered as the storage standards. Sony has also developed reliable, efficient, robust and popular Optical Disks (Magneto Optical MO, Compact Disk CD, Digital Versatile Disc DVD).

For more information and online order, please visit www.tape4backup.com

By: ShawnPaul

Article Directory: http://www.articledashboard.com

How to Install a New Font

Due to the dynamic world we live in, a lot of people want to use new fonts for uniqueness and style especially in designing their web sites or web pages. An example of a new font is the Harry Potter font loved by Harry Potter addicts. If a person wants to learn how to install a new font, there are a lot of resources found on the Web that they can check out.

There are many fonts that you can download off of the internet. Once the person has picked the font that captured his/her interest, the next thing to research about is how to install the new font in the laptop or the PC. Of course, using search engines such as Google and Yahoo will lead you to various sites offering instructions on how to install a new font.

If Microsoft Windows is your operating system, you will find it easy to install new fonts. Most of the font packages that can be downloaded from the Internet are in .zip files. The files are compressed to have a faster download rate. Unzipped the file first prior to installation.

The steps to install a new font are listed below:

1. All open Windows programs or applications must be closed first.

2. Next is to double click on the Control Panel and then select Appearances and Themes.

3. Click on See Also, then Choose Fonts. If a folder tree appears, however, click Folders, and then once See Also appears, choose the category Fonts.

4. Under the File menu, you will see the option: Install New Font. Select that option.
5. Once that option is selected, you will be asked to select a drive.

6. Look in the Folders list and select (double-click) the folder that holds the new fonts that you desire to add.

7. Select the font you have decided to add found in the Fonts List, and once selected, click OK.

Additional Information:

If you have decided to add more than one font, press the CTRL key and hold it down, afterwards then click on al the fonts you want added to your PC. You can also drag the fonts from another location into the Fonts folder to install the new font faster.

If you are planning to use another computer within your Local Area Network (e.g. your PC is malfunctioning so you decided to use the PC of your colleague who is seated beside you) the new fonts you have installed will not appear in your colleague's PC. You can install the new font into the said PC if you really need to use that specific font.

This article was written by Tech 31 Other great articles we have written are how to increase virtual memory

Article Source: http://EzineArticles.com/?expert=Nathan_Hutchinson

Office Network Design

Most likely you have a computerized billing and scheduling system in use, whether or not you use Electronic Medical Records (EMR) at the moment. With more than just a single computer in use in your practice, it's more than likely that you're on some type of network. When multi-user, multi-task EMR systems are integrated into the practice, the complexities of capabilities and network designs become essential. Although many practices simply choose to hire an IT consultant or firm to handle these issues, this article will cover some of the most common network design concepts to consider.

Networking Basics : WAN, LAN, or MAN

Some EPM/EMR software might be incompatible with system software or network hardware. This must be determined before you purchase your system, and, if you think you'll be adding other users, it's often more economical to purchase licenses for multi-users rather than individual retail software packages. A Local Area Network (LAN) can connect computers and printers within a limited area such as an office. This LAN can link in with other LANs via wireless or network connectivity.

Unfortunately, some EPM / EMR applications may have compatibility issues between network and operating system software. This compatibility must be assured before going ahead with the purchase of an EMR package. Additionally, if you expect you will add new users, it's often more effective to buy a multi-user software license as opposed to individual consumer licenses at a retail outlet.

A wide area network (WAN) connects smaller LANs or Metro Area Networks (MANs). This can be done over a wider geographic area, as in a series of remote offices. These WANS are often used by large companies. The most widely-known WAN today is called the Internet. The Internet can permit access to a company intranet, where employees communicate with each other no matter where they are located. For an EPM / EMR system that runs between satellite offices, a stable high bandwidth connection is a must in order to keep the practice running consistently and smoothly.

Bandwidth and Topology

The network's bandwidth is the capacity of data that it can carry, usually expressed in bits per second, or bps. Connection speeds vary from 56 kilobits per second, to millions of bits per second. However, actual bandwidth speeds achieved may be limited by the hardware used, at times even the software used. In addition, the overall network speed can be greatly reduced as multiple users attempt to access information from the EMR system.

A fast connection means little if the network speed is slow due to bad planning or underpowered hardware. Network topology is also important. Topology is the physical shape of the network, as in a string of computers which minimize the amount of wiring between them. Still, if one part of this network goes down, it could take out the whole network. The best topology requires more wiring but is resilient to systemwide failure from a single weak point. However, the total amount of machines on this type of network is limited. Large networks use a mesh topology that offers redundancy and allows for better expandability.

Wires

In an average 'paperless' office setting, an exam room contains computers wired to the server, which runs EMR software. However, some physicians who are technically-savvy may like to enter info into a wireless device, carrying it between areas at the practice. The concept of wireless networking adds a new series of points to address.

Signal Strength - We've found that wireless access devices gather less-than-promised ranges when functioning in a typical office setting with many walls.

Bandwidth - Even if your LAN has good bandwidth rates, the speed of access can be limited by the speed of your wireless connection.

Security - Hackers can wreck your network if it isn't properly protected. Even a basic wireless access point must have built-in security which can be enabled easily.

Fat or Thin Clients - Will you use wireless laptops that run software directly on a wireless connection (fat), or will it run software virtually via a remote connection (thin)? Disconnects are simple fact for wireless networks; the thin client allows the software to continue to run in this case, allowing you to pick up where you were interrupted. A fat client solution what has its connection broken may cause a subsequent software crash.

Peter J. Polack, M.D., F.A.C.S., is founder of emedikon, a medical practice management consulting firm and president of Protodrone, a software development company specializing in medical practice applications. He is managing partner of Ocala Eye, a large multi-specialty ophthalmology practice.

Article Source: http://EzineArticles.com/?expert=Peter_Polack

Apple Imac - Product Configuration

Slim, all-in-one design

Setting new standards for elegance and simplicity, the all-new, all-in-one iMac packs all its components — from processor to video camera - into an astoundingly thin, anodized aluminum frame.

Intel Core 2 processor

The advanced dual-core Intel processors that power every iMac are faster than ever delivering greater performance for everything from enhancing photos to playing games and more.

Dazzling displays

Your photos, movies, and games will come to life in rich, vivid color thanks to the new glossy widescreen display on every iMac.

Share your life’s events with iLife ’08

With new versions of iPhoto, iMovie, iDVD, iWeb, and GarageBand included, you can create a photo book, make a movie, build a blog, compose a song, and much more.

Built-in iSight camera

Have a video chat with friends or family, record a video at your desk, or take fun pictures with Photo Booth — everything you need is built right in.

CONFIGURATION 20-inch iMac (MA876LL)

Processor: 2.0GHz Intel Core 2 Duo
L2 cache: 4MB shared
Frontside bus: 800MHz
Memory: 1GB (one SO-DIMM) 667MHz DDR2 SDRAM (PC2-5300), supports up to 4GB
Hard drive: 250GB Serial ATA1; 7200 rpm
Optical drive: Slot-loading 8x SuperDrive with 4x double-layer burning (DVD±R DL/DVD±RW/CD-RW)
Display: 20-inch (viewable) glossy widescreen TFT active-matrix LCD, 680 by 1050 pixels, millions of colors
Video: Built-in iSight; mini-DVI output port with support for DVI, VGA, S-video, and composite video connections via adapter3
Graphics: ATI Radeon HD 2400 XT with 128MB of GDDR3 memory
FireWire: One FireWire 400 and one FireWire 800 port; 7 watts each
USB: Three USB 2.0 ports on computer; two USB 2.0 ports on keyboard
Audio: Built-in stereo speakers with 24-watt digital amplifier, built-in microphone, optical digital audio output/headphone out, optical digital audio input/audio line in
Ethernet: Built-in 10/100/1000BASE-T (Gigabit)
Wireless: Built-in AirPort Extreme (802.11n)2; built-in Bluetooth 2.0+EDR (Enhanced Data Rate) module
Hardware accessories: Apple Remote, Apple Keyboard, and Mighty Mouse
Other: Built-in IR receiver

By: Henery

Article Directory: http://www.articledashboard.com

Online Computer Shop – Buy Best Pen Drive And Usb Storage Devices

When selecting a pen drive there is so much alternative when it comes to features, memory capacity, brand, model, price and warranty that there is something for everyone. Today many branded pen drive are very popular like kingstone, integral splash, adata and today almost everyone is purchasing pen drive. Have a look below some pen drive details available:

(1). Integral Courier USB Pen Drive

Features:
• The best-selling Integral Courier Flash Drive is a fast and easy way of moving data between computers in style
• Works with Windows Vista, USB 2.0 high speed specification
• LED read/write light, Stylish translucent blue
• Lightweight and compact design, PC and Mac compatible
• Replacement for your floppy disks, Zip drives and CD-R's
• Read speed of up to 12MB/s (80x), Write speed of up to 3MB/s (20x)
• Drag and Drop file to and from your Courier USB Flash Drive using Windows Explorer, Support for Windows and Mac OS
• True Plug and Play (powered by your PC)
• Backward compatible with USB 1.1 (works at USB 1.1 speed)
• Available in 4 Sizes: 1GB, 2GB, 4GB & 8GB

(2). USB 2.0 Splash Drive Pink

Features:
• Tactile rubberized casing, PC and Mac compatible
• Water & shock resistant - has been thrown from a 3 storey high building by Zee Business and has been completely unaffected
• Cool blue LED read / write light, Perfect for moving files between school, office & home
• Comes with key chain that stores cap when the drive is in use
• Free Windows security and zip compression software included on the USB drive
• Warranty: 2 years international warranty

(3). Premium Powered 4Port USB Hub

The Logitech Premium 4-Port USB 2.0 Hub provides reliable high-speed connectivity for your notebook.
Features:
• Speeds up to 480 Mbps you can rapidly transfer large files, Smart indicator lights show if your devices are connected properly
• You can use all your high-power USB peripherals thanks to the external power adapter and the unique compact design allows you to plug devices into the front and back of the hub
• An included carrying case protects the hub when you are on the road

Author suggests you to buy pen drive from homeshop18.com and get maximum discount.

By: Harry Potter12

Article Directory: http://www.articledashboard.com

How To Connect A USB Modem Wireless Router Ethernet

I currently have a USB broadband modem. I purchased a wireless router which has ethernet connections. Currently, the modem is plugged into my computer downstairs which is running Windows 98, therefore, it won't bridge the connections to my computer upstairs(XP). I can't update to XP because a family member wont 'risk' it.

Can I connect the USB broadband modem to my wireless router using a complicated selection of cable adapters ie ethernet to USB (I cant find a USB TO ETHERNET adapter). If this is not possible, if I plug the USB modem into my XP computer, can I bridge the connections to my Win 98 computer using the XP computer as the host?

I think their is Ethernet to USB out their currently but not USB to ethernet. I dont see any reason why you should not be able to hook up your USB modem to your XP computer and use it as a bridge to the 98 computer.

Of course, it would be nicer to have an all-in-one unit, but you can accomplish your goal with this equipment. You cannot use cable adapters to convert the modem's USB into Ethernet. USB needs drivers to operate, and Ethernet connections do not provide those drivers to the device. you could also connect the modem to the XP machine and bridge connections, yes. but you can leave the system the way it is and configure it to run smoothly like this:

If I had the hardwear in front of me, it would be easier to provide specifics... but i can probly give you an idea of what to do. There are only 2 steps here:

1. configure an internet gateway.

2. configure the router.

And the rest is easy.

1. Set up the internet machine to SHARE AN INTERNET CONNECTION (you can use the wizard if you want, or just enable Internet Connection Sharing), which will turn the 98 into an internet gateway. that gateway needs an IP address designated, however. In essence, the 98 machine will be the internet server, so the IP of the 98 machine is the IP of the gateway. Assign an address, for example: 192.168.1.1 to the 98 machine. the "192.168" is important, and the last strings you can stretch on, but for the sake of ease lets keep it small. *TIP* the subnet mask will always be 255.255.255.0. okay that takes care of the host machine.

2. after you have an internet gateway, connect the wireless router, and console (or IP) in to the settings, usually by going into internet explorer and typing 192.168.0.1 into the address bar, and look for a slot for Internet Gateway. Type the address assigned in step 1. thats that for the router. (there may be other settings necessary for your specific network, and if there are, be sure to configure those.)

Lastly a few housekeeping tasks. make sure the workgroup for both machines is identical. I usually use MSHOME as the workgroup. Also make sure that on the XP machine, your IP address is set to "Automatically Obtain IP address", also known as DHCP.

Published At: www.Isnare.com
Permanent Link: http://www.isnare.com/?aid=157034&ca=Computers+and+Technology

Computers Don’t Lose Their Memory With Age

Data privacy in today’s age of the Internet, online information repositories and e-government has become more complex, particularly in healthcare environments: Securing protected health information is no longer as simple as locking a file folder in a cabinet.

Patient data such as drug regiments, psychological history or diagnostic imaging including x-rays and ultrasounds is now distributed across physical buildings and computers as healthcare professionals consult with one another and collaborate via e-mail and networks; this means it’s more difficult to track where patient information is actually being stored. What is certain is that patient data is stored on computers – PCs, laptops at private practices or servers in a specific department – that will eventually be discarded or redeployed for another purpose.

Under HIPAA rules (PIPEDA in Canada), healthcare organizations must understand the flow of protected health information and must have mechanisms in place to secure access to that data. Take this a step further and it means discarded computer systems must not become a backdoor means to gain unauthorized access to confidential health information.

And while normally the primary concern of most healthcare organizations is to ensure that data is available to staff when they need it, the discarding of old computer systems is one occasion when going the extra mile to destroy confidential data is required so it does not fall into the wrong hands.

Data is a lot like DNA. It can be inherited. It can mutate. Typical computer users in the healthcare sector contain confidential material such as patient records, accounting records, x-rays, diagnostic images and much more. To a data recovery expert they are nothing more than “0s” and “1s” organized on the computer’s hard disk drive and much easier to retrieve than one might think.

Data-ridden computers can be discarded in a number of ways. Sometimes they are turned in for newer models when leases retired, or they are simply “inventoried” and placed in a storage room to gather dust. Often old computers are donated to charity, auctioned off or sold to the general public with the data still residing on the hard drives.

Whether discarded individually or en masse, it’s entirely possible that these computers still contain protected health information. Much of that data could be the software applications and trivial information, but frequently the information remaining on these computers can be extremely sensitive.

Lost, but not irretrievable

Data on computers, despite apparent loss due to natural disaster, equipment failure, human error or security breaches, is rather resilient. Data often thought irrevocably lost can be and is frequently retrieved by data recovery specialists. Likewise, data thought deleted from a system is often still resident on a discarded computer’s hard drive.

Data removal procedures go beyond the simple deletion of a file from the computer user’s desktop. There are methods and techniques that are used by individuals who come into possession of previously used systems who can reconstruct data even after the storage media has been erased.

What many users don’t realize is that when most computers delete a file, the contents of the file are not actually removed: the file, at least in the short term, is still resident on the hard drive, but it’s no longer linked to the file system. The data remains on the disk until the operating system re-uses those sectors to write new data.

In order to confirm a deleted file is really deleted, it is necessary to overwrite the data sectors of that file. Until the old data is actually overwritten by new information it can be recovered by programs that read disk sectors directly, such as forensic software, commercially available data retrieval software or data recovery techniques. As result, data thought to be deleted may remain on the drive if the sectors are not overwritten.

There are a number of ways to ensure the destruction or inaccessibility of data on hard drives: degaussing, overwriting, data encryption and media destruction are some of the methods that have been employed to safeguard against disclosure of sensitive information.

Wiping

The wiping of sensitive data from a computer’s hard drive or a removable storage device is the best method of data destruction to guarantee the data can’t be reconstructed through laboratory techniques. Wiping is essential when hardware containing sensitive data is moved from a secure facility to a non-secure facility or environment. Software-based data destruction methods are inexpensive and easy to use for the average computer user,
Software used for data purging is available on the market from a number of vendors.

Degaussing

A more severe approach to data erasure is degaussing, which often renders hard drives inoperable. Degaussing is a process whereby the magnetic media is erased. As a result, degaussing can prevent computers from being recycled for educational use, charitable donation or resale to the general public. The sensitivity of the data stored on the computer and the feasibility of software purging should be weighed before one makes the decision to degauss hard drives.

Clearing

A less extreme means of data erasure is the removal of sensitive data from storage devices in such a way that there is assurance, proportional to the sensitivity of the data, that the data may not be reconstructed using normal system capabilities. Clearing is feasible when the storage media is reused within the same computer and same office. For example, if the computer is simply being cleaned up for a new staff member taking over from a departing staff member, it is remaining in the same controlled environment.

Clearing can be accomplished by overwriting the unassigned system storage space on the disk. A single overwrite of a file or all system storage is usually enough to make sure that previous information cannot be rebuilt.

As mentioned earlier, simply deleting a file only removes the directory pointers to the file; the digital information is still on the computer until overwritten. Even reformatting, or repartitioning a hard drive is not enough to guaranteed that the files are completely gone, even if the end user can’t browse them or open them with an application.

Ultimate destruction

In extreme cases where the destruction of data must be guaranteed and the chance of retrieval must be eliminated, physical destruction of the hardware is the best course of action.

Media may generally be destroyed by using a number of methods, including an abrasive substance on magnetic disk or drum recording surface. Corrosive chemicals can have the same desired effect, but regardless, the entire recording surface must be completely removed before disposal. Destruction of drive (or the entire computer, for that matter) can also be achieved by being smelted, disintegrated or incinerated at a metal destruction facility or through incineration.

Even if the decision is made to destroy the hardware completely, it is still a good idea to purge media before submitting it for destruction.

Hold on a second!

While making sure sensitive data does not fall into the rights should be established policy, it is important to make sure that data is no longer needed; if it is, make sure it can be found on another computer or server.

Before disposing of any computer hardware, be sure to back up the data in a secure location. Just because the computer is no longer needed, doesn’t mean the data isn’t still required, and that data may not be found anywhere else in the organization. There could also be legal requirements for maintaining certain information, including medical records long after the patient has left the facility

Ultimately, however, the safeguarding of protected health information is critical and properly removing this sensitive information from computer hard drives must be incorporated within any other security and privacy policies and processes.

Published At: www.Isnare.com
Permanent Link: http://www.isnare.com/?aid=156941&ca=Computers+and+Technology

Six Steps to the Perfect Computer Room

As more and more businesses rely on computers for the day to day success of their business, businesses are packing more computers in to offices, so that each member of staff has a PC and is truly efficient.

This is excellent, as the businesses are investing in the Technology, but eventually these businesses will discover they computers begin to run slow, then stop! The reason being, most organizations, do not invest in the actual computer room, this is the room dedicated to accommodating the servers and where the network infrastructure is terminated. It's just the same as having a Formula 1 car and putting standard unleaded fuel in it, it will run but the performance will be no were near what it should be.

An independent survey illustrated this, by poling 50 top UK manufacturers, only 16 had a dedicated Computer Room, that had the relevant security in place to protect their investment, 3 used what you would call a cupboard to house the main server. 1 in particular stored the server in a room 3 feet x 4 feet, with the monitor balanced on the server while the keyboard was on the floor and this was a leading Global manufacturer worth over $5 billion!

To build the ideal Computer Room, you will need;

1. An access control solution. This can be a simple keypad entry system set a 4 digit access code and press the digits to gain access, or a more complete swipe card system, that logs each entry in to the room and sends an email to the Network administrator when someone tries to gain access when they don't have the necessary privileges.

2. A false floor or suspended ceiling, either one of these are necessary for both structured cabling that runs the army of computers in the offices and air conditioning for cooling of the servers, to ensure the servers don't crash.

3. KVM switches, these are the devices that can be used to monitor banks of servers from a single monitor and keyboard. KVM stands for Keyboard, video and mouse. The switches can be daisy chained together so that they can control and manage up to 345 servers per monitor, keyboard and mouse. These switches have a fantastic ROI, as they save money on the monitor, keyboards and mice that the business would purchase, as well as the extra expense of increased air conditioning to reduce the heat from the monitors and most importantly save a huge amount of space.

4. Storage of the servers. There are 2 types of storage, rack mount cabinets for rack mount servers and open LAN racking units that store free standing servers, monitors and keyboards etc. These units can be arranged, so they store 20 free standing servers with 1 monitor, KVM switch and keyboard controlling them, they are modular and more flexible for the ever expanding computer room and most importantly the most cost effective solution.

5. Air conditioning: If you have ever been in a computer room when 40 servers have been running for 2 hours, you will know how much cooling they require and this is paramount!

6. Structured cabling: These are the cables that connect each computer and if you were to trace each cable, they would run back to the computer room and to the server. These are normally classified as Category 5e or Category 6 data cabling and there are many Global manufactures of data cabling solutions.

Published At: www.Isnare.com
Permanent Link: http://www.isnare.com/?aid=276429&ca=Computers+and+Technology

How to Speed Up Computer - The Hassle-Free Way

Are you aging as you wait for your tediously slow computer to respond? Getting overly frustrated with crawling processor speeds? Wish you had a sleek, new fast computer? Computers don’t have to be slow. Slow computers don’t have to stay that way. If you are willing to take action, you can have a fast, responsive computer. If you are worried that a quick computer repair is going to cost you a bomb, then fret not because there are hassle-free ways available for you to give your PC a fast and easy tune up.

No matter where we are, using a computer in an inescapable task in modern society. Considering how dependent we are on it, it is only natural to want a fast computer. If you are ready to part with your money, then shouldn’t have problems buying a high end computer on a whim. But if you’re not, then let’s examine some hassle-free, low costs ways in which we can speed up our computers.

#1 Avoid multi-tasking

Everyone is guilty of this. It is normal for computer users to open an array of applications at one go. The problem with this is that when too many applications are running all-at-one-go, chances are your RAM space gets used up all at once. As such, this causes your computer to become laggy and eventually your computer screen will freeze up. So, to avoid the problem of laggy computers, simply learn to minimize the use of numerous applications at one go.

#2 Simplicity is the best

Keeping everything simple on the desktop can also minimize the problem of laggy computers. Computer users like to use fancy wallpapers, animated mouse pointers and such. But little did we know that these fancy ‘things’ on our desktop can slow everything down. So try your best and avoid using high-resolution pictures as your wallpapers and resist the temptations of using that pulsating heart as your mouse pointer. You’d better ask yourself if it is worth your while to turn your desktop into an animated circus.

#3 Easy computer checkups

Just like humans, computers need regular check ups too. Regardless of how new a computer may be or however seemingly ancient it may look, it is necessary that you conduct constant check ups on your computer. There are free computer check ups available online. Some of these free computer check ups are as good as their commercial counterparts. Simply make full use of the free computer checkups, as they are able to diagnose any errors, viruses and spywares that might be present in your computer. The great thing about this is that these free computer checkups will also help to solve the errors for you too.

Speeding up your computer does not necessarily have to be expensive. The tips and tricks mentioned above won’t even cost you a dime! Just remember to do regular check ups on your PC and you can be assured of a hassle free experience the next time you use your PC.

Published At: www.Isnare.com
Permanent Link: http://www.isnare.com/?aid=277860&ca=Computers+and+Technology

Why Go On A Microsoft Access Training Course?

Microsoft Access is one of the most powerful applications in the Microsoft Office suite. Using Access it is possible to build complex relational databases with relatively little effort. It's a very versatile program, and can be used to do anything from linking simple lists of data to creating fully functional accounting and invoice systems.

However, all this power comes at a price. Access is possibly the most difficult Office application to get to grips with. As a result many users are intimidated by Access and may resort to using other applications, such as Excel, even when Access would be the best solution.

Microsoft Access training courses can go a long way to overcoming peoples fear of using Access. Courses taught by experienced certified instructors can help a student learn how to use Access whilst also tackling lack of understanding of general database theory and terminology.

Whether you need to learn more about Access just to get your job done or whether you are an IT specialist, a good Access training course should allow you to learn in an easily digestible fashion. A good Access tutor can make it possible for a class full of students to all learn at a pace that they are comfortable with.

A typical Access database course would aim to familiarise the student with basic database concepts and the features of the application. A course is likely to focus on the teaching of database theory before it progresses onto how to manipulate an Access database. A student would expect to learn how databases relate to tables, how tables are in turn composed of fields and that each field has a data-type and how these concept work in Access.Once the basics have been covered a tutor would usually then progress onto how to improve the organisation and usability of reports and forms through various means including using the auto-format wizard. It is usually at this point that students will learn how to perform data calculations through queries, reports and forms.

Most basic to intermediate Access training courses will typically not progress beyond this level as other concepts and uses are generally the only covered in a more advanced Access course.

As with all things in life it is important to note that no matter how good the course, if a student doesn't put what they have learned into practice they will eventually forget. Familiarity only comes with regular practice and students who are prepared to invest the time will find that Access becomes progressively easier to use and that their databases become more powerful.
However, the grounding provided by an Access training course makes the first steps to learning Access so much easier. Having a tutor to answer your questions and to help you grasp the basics provides a firm foundation on which you can develop your Access skills.

By: P Adkins

Article Directory: http://www.articledashboard.com

5 Important Things To Know About The A Plus Certification

1. The A plus is what most people start with

Comptia (the vendor offering this certification) got it right with the A+ certification. It's extremely popular and no wonder why. The A+ is the very first step in our career ladder and a very important one. Studying for this cert we get down to the basics of what computers are - hardware and software - and in depth learn everything that is important about them. This is what the A+ gives you - an extremely important foundation to work on. Nearly nobody stops at the A+ - it's our very first step towards obtaining other higher certs which gives us higher positions and more money in our pockets.

2. How to study for it [this is important]

New people into the Industry feel unsure on how to best take this first step in their career ladders. Getting your first certification is like getting your first kiss - you always remember more details about it than any other cert you will be getting after that. Always opt to self study, unless your employer is willing to pay for a training school or boot camp. The truth is, entry certifications build a foundation to work on. They do not land you in the big bucks. That comes later. Spending lots of money on training for entry certs doesn't make money sense.

3. There are 4 exams you can choose. Which ones do you do?

The A+ essentials (exam 220-601) is the first one you must pass. After that, you have the choice of:

IT Technician (220-602)
Remote Support Technician (220-603)
Depot Technician (220-604)

Most people do the IT Technician one as it gives you a more rounded knowledge. The other two, specialize so to speak, you should choice either one of these two only if your job requires it.

4. Where can you book the exam?

All comptia exams are booked through Prometric or Vue. Once you finished studying, go to either website and choose your nearest testing center. Pay the fee and book the exam on your choice of date. Now you are all set. When you go to the training center, arrive 30 minutes beforehand and don't forget to bring 2 forms of ID with you.

5. How long does it take for the certification to arrive?

When you complete your exam at the training center and you pass, they will give you a piece of paper stating you have passed the exam. You can use that on your resume for the moment to show employers you are now A+ certified. The actual certification will be posted to you from Comptia and this take around 2 to 6 weeks.

Good luck!

By: Georgia Stath

Article Directory: http://www.articledashboard.com

5 Important Things To Know About The Network Plus Certification

1. Why should you even consider doing the Network plus certification?

The Network plus certification is a natural continuation from the A+ certification. A+ teaches you about computers (hardware and software), the net+ teaches you about networking. This is another entry certification alot of people take to broaden their knowledge base before tackling the more advance certifications.

2. CCNA vs Network+ confusion

As both these certifications are about networking, new people in the industry feel confused on which will give them more value for money. The truth is, you can't compare them. The only thing they have in common is that they deal with networking. The Network+ is an entry certification which broadens your foundation. It is vendor neutral. The CCNA is not. It concentrates on Cisco Routers.

Network+ although an entry cert has alot of information - and I mean ALOT. By the time you finish studying for it, you will be sick of network terminology. The CCNA is even more difficult. After studying for this one, you will be subnetting in your head - even when you don't realize it. Know how you hear a song and it sticks in your mind and you can't get it out? Same thing with subnetting.

If you are new to the industry, go for the network+ first.

3. Best way to study

Most IT professionals choose the self study method. If this will be your choice as well, what I recommend is that you buy a good book from amazon but more importantly also try to get hands on experience. Get a couple of computers and network them. Get CBT (computer based training) videos so you can also visually study. The reason I recommend hand-on and visual training is because this certification has a lot of terminology to study and remember and it can become exceedingly boring if you don't keep your hands occupied as well.

4. Where can you book the exam?

All comptia exams are booked through Prometric or Vue. Once you finished studying, go to either website and choose your nearest testing center. Pay the fee and book the exam on your choice of date. Now you are all set. When you go to the training center, arrive 30 minutes beforehand and don't forget to bring 2 forms of ID with you.

5. How long does it take for the certification to arrive?

When you complete your exam at the training center and you pass, they will give you a piece of paper stating you have passed the exam. You can use that on your resume for the moment to show employers you are now Network+ certified. The actual certification will be posted to you from Comptia and this take around 2 to 6 weeks.

Good luck!

By: Georgia Stath

Article Directory: http://www.articledashboard.com

How Do I Make My Computer Faster Than Normal?

“How do I make my computers faster than normal?” This is a common question among PC users. Most computer users will encounter systems that are slow and unresponsive at some point of their computer using lives. If you think that owning a recently purchased computer exempts you from this problem, you are sadly mistaken. Even the latest computers will slow down eventually if preventive measures aren’t taken. Let’s examine several simple steps we can take to speed up our computer.

#1 Registry cleaner

Every computer has a registry. Information stored in registries can never be deleted nor removed. Instead, this information gets overwritten multiple times. As such, this increases the chances of corrupted and redundant files. Having too much irrelevant information stored in the registry can cause the computers slow down. This is because the computer now has to wade through a junkyard full of digital waste before reaching to the information it wants. To ensure that your registry stays junk-free, simply use a registry cleaner to clear out all redundant files. A registry cleaner will help you to sieve out corrupted files and ensure that only the right set of information is being stored in the registry. RegCure and Reg Mechanic two of the most popular registry cleaners that you can find off the shelves in any computer shop. But if you think that you are not ready to part with your money, then try using the all-free CCleaner. It works just as well as other paid registry cleaners too.

#2 Regular defragmentation

Don’t be a stranger to defragmentation. Defragmentation is a simple, yet effective tool that can be your computer’s best friend. Conducting regular defragmentation is encouraged as it helps to sort out files and folders that might have gone missing. The best thing about defragmentation is that is it free for all Windows users. Just be prepared to leave your PC overnight as defragmentation can take quite some time.

#3 Minimize the use of numerous applications at one go

Everyone is guilty of this; MSN Messenger, Microsoft Word, Windows Media Player and Internet Explorer all running simultaneously. Multi-tasking is always desirable, but what happens when too many tasks are being executed at the same time? If your RAM is big enough, then chances are you will not have to worry about programs freezing when you try opening them. If you have insufficient RAM, your computer could freeze or slow down. It is best when you try to minimize the number of applications running at all times.

These are just some of the examples that you can use to get your computer running at tiptop speed. These simple methods have been proven to be effective and have been used by computer experts all over the world for years. Best of all, is that you can follow these simple steps without having to pay for expensive software. Just remember to conduct regular computer checks to ensure that bugs, viruses and spywares are not infesting your monolithic trove of digital treasure.

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Computers – The Best Tool For Video Editing

Computers were designed to make things easier for us and a lot faster. That is also true with using computers for video editing. Computers are being used for video editing nowadays because it saves a lot of time. If you are familiar with computers it will be a lot easy and you can finish the job in about an hour. Using computers for video editing is known as Digital Video Editing. All you have to do is just take a video or a shot then connect your camcorder to the computer. After that you can start editing it and add whatever filters or titles you want to put.

The computer will play an important part in making you video a good one. You have to download or install video editing software first. Also, check your computer. You must have a CPU processor that is fast. The CPU processor is the life of the computer for this is where information is stored. As like what they say the muscle and the brains of a computer. If the CPU is fast, it will produce better edited videos and you could check or preview the video at present time.

Large Hard Drives is also a must in using computers for video editing. You will not only use software for editing but usually the files of the video are large therefore consuming a large space on your hard drive. This is essential in creating a high quality video. It is also recommended that you get an external hard drive so that you will still have enough space for your computers hard drive. It is a good way to store your videos if you use an external hard drive. A factor to consider is the RAM that you have in your computer. It is one of the factors that will give your computer a good performance as well as create a good quality video. You may use 1GB of RAM but if you can upgrade it to 2GB it will be better.

Hardware equipment for video editing has two kinds: analog and digital. We use video capture card for analog format. This will transfer analog picture from your computer to other sources like television, analog camcorder and VCR and will format it to digital video. Firewire is also available and in demand. This video editing hardware equipment allows us to transfer the video in digital format thus making us capture the video digitally and would not have to go to the process of transferring video from analog to digital format.

With digital video editing we can make simple videos like your summer vacation or a special occasion a quality video. Chances of making a documentary film is also big just by using digital video editing. It is less expensive. Also, the image quality will not diminish since we are using digital format. We can further enhance the video instead of making it poorer in quality. Computers will make your video editing faster, easier and would produce quality videos that you may benefit in the future.

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Computer Viruses - What Are They and What Do They Do?

A virus is known to many as an agent that causes different diseases. They have many modes of infecting all of the members of the animal kingdom. Although there are different types of viruses, they have one commonality; they are all harmful. Nowadays, the term virus has taken a different turn when it comes to the meaning. Now, it is more commonly associated with anything that brings a computer to its demise or to something close to that.

Computer virus has to be the most popular phrase when the thought of internet comes to the minds of most people. The reason is that they remember the destruction it brings. Computers have changed the way all people live. It has become important in all aspects of living may it be politics, religion or business. Just when we thought it could not get better, the Internet came along. Among all of the benefits of the internet, the one that people are most happy about is how it made communication much easier. In the old days, the only connection you have to your loved ones in other countries is through mail or telephone. Now, there are more efficient and faster ways of communicating. You can send an e-mail or a private message which will only take a few seconds and your message will be received immediately.

This advancement took a tragic turn when someone smart enough decided to make a computer virus. A computer virus, sticking to the true meaning of the word virus, is something that infects a computer, jams its programs and causes many problems to the user. It can bring any time of destruction from a small computer glitch to making your whole computer system crash.

Sadly, there are many ways that a virus is transferred from one computer to another. Storage devices such as USB can be a medium to transfer a virus. If two or more computers are connected via a network connection, a virus can be transferred. The most devastating news is that not only can it be transferred offline; it can be transferred online too. The internet became the most notorious aspect of the computer when it comes to getting it infected.

This is why the whole world, or the people who uses computers, rejoiced at the birth of antiviruses. These are the programs that are designed to track down and get rid of computer viruses from its system. Now, there are many ways on how to protect your computer using antiviruses. Although there are many antivirus programs out in the market today, they have one common factor: they prioritize prevention. They gave importance of detecting a virus that is threatening to invade a computer so that they can block it before it can cause any harm. Now, antiviruses are also wise enough to detect viruses that are already in the computer before they were installed and delete or clean it.

Aside from antiviruses, the users can also follow guidelines to prevent their computer from getting infected such as don’t access sites that are about pornography since most viruses are found here.

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Lotus 1-2-3 Vs. Excel Vs. Google Docs & Spreadsheets?

Upon their release in the early 80’s Microsoft Excel and Lotus 1-2-3 offered similar products measured by both quality and efficiency. They each associated themselves with different systems which in turn determined their place in the market for the next two decades. It seems that we may be embarking on another turn of events with the availability of free web hosted applications such as Google Docs & Spreadsheets and Zoho Office.

Lotus was not the only spreadsheet program in the early 80’s but it was the most efficient. Following its release in 1983 Lotus was innovative in using television consumer advertising. Things looked great for Lotus for a number of years due to its speed and similarity to the model of VisiCalc, including the A1 number and letter cells, and slash-menu structure. It was virtually free of bugs and outperformed the slower DOS screen input/output functions. In addition to being a spreadsheet it also featured integral charting/graphing and database operations. Hence, its name 1-2-3 which references its three main capabilities.

Data was sorted in each defined rectangle within the order of data in one or two columns in the rectangular area. One could also justify text within a certain range into paragraphs which allowed it to act as a primitive word processor. It contained user friendly features such as keyboard driven pop-up menus and one-key-commands. Lotus’ most notable user friendly feature was a context sensitive help menu accessed by the F1 key.

Version 2.0 introduced macros and add-ins. This resulted in outside vendors being able to sell macro and add-ins packages which ranged form full fledged word processors to dedicated financial worksheets. Version 2.0 contained macros with syntax and commands as well as a string of variable expressions which were similar in complexity to an advanced BASIC interpreter. In versions to follow Lotus 1-2-3 also supported multiple worksheets. Lotus also created a version of 1-2-3 for the HP 200LX, a palmtop released by Hewlett-Packard.

Excel was offered first for Mac in 1985 and then for Windows in 1987. In comparison to Lotus, Excel’s introduction offered all the number crunching capabilities plus pull down menus and WYSIWYG formatting. These two features resulted in Excel being much easier to use. By 1988 Excel outsold 1-2-3 and began to solidify its place as the leading PC software developer. Microsoft proved to be an ambitious competitor, by maintaining a valuble product and releasing new versions approximately every two years. Excel has also kept up with its Mac releases. The current version for the Windows is Excel 12 or Microsoft Office Excel 2007. The current version for Mac OS X is Microsoft Excel 2008.

Looking back, it seems that in 1982 when Microsoft offered its spreadsheet program titled Multiplan it was popular with CP/M systems but MS-DOS systems favored Lotus 1-2-3. MS-DOS clearly prevailed as the more predominant system, thus, Lotus 1-2-3 as the more predominant spreadsheet program. In the late 80’s Microsoft put together Excel, an upstart spreadsheet for its Windows graphical interface. Lotus was focused on IBM OS/2. Windows use boomed with Windows 3.0 but Lotus had already lost its lead. Excel become the industry leader for spreadsheet computer software. IBM continues to sell 1-2-3 as part of the Lotus SmartSuite office suite.

The trends are shifting again with the availability of free web hosted applications such as Google Docs & Spreadsheets and Zoho Office. This is sure to provide a challenge for Excel to maintain its prestigious position however; it will not be a clear comparison as the online applications are a different product. They do not imitate Excel and 1-2-3 but expand on them. They use the power of the webs collaboration, instant feedback, mashups, live data and context searches. None the less it will be interesting to see Microsoft’s future maneuvers!

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What Are the Different Types of Flash Drive?

When you are looking for flash drives that will suit your needs, you will find there are several points that you may need to think about. When you are getting a flash drive, you might find there are many different uses that you have for it. Keep in mind what you need to store and you will find that moving files on your flash drive is easy!

When you use a flash drive, you are taking advantage of a piece of non-volatile hardware that can be easily rewritten to allow you to move information back and forth quickly and easily. When you are looking for the right flash drive for you, take a look at the different types of device that you are looking for and how they can help you.

The first type of flash drive will contain single level cell memory. What this means is that it can sustain about 100,000 write cycles, meaning that you can erase and write over it 100,00 times. You will find that this can hold a great deal of information over time and that if you are looking for a device that will really go the distance, this could be exactly what you are looking for.

When you are looking at Multi Level Cell memory, you will find they can still withstand 100,000 write cycles. While this does seem significantly less than the specifications listed above, there is every reason to think that this drive will be more suitable for you. You will find these flash drives can hold more data at once and that occasional replacement might not be a huge problem if you can do most of your data transfers at once.

When you are looking at flash drives, they come in many different formats:

The first one that you may be most familiar with is a USB flash drive. A USB flash drive will let you plug the small drive directly into your computer and you will be able to access it as a drive on your computer. This will allow you to copy information to it as you need to and you will find that there are plenty of reasons to stop and take a look at your data needs to see what device will suit best.

When you are considering what kind of flash memory you need to invest into, you can stop and consider what you are transferring and how often. You will find that if you are transferring small amounts of data relatively frequently, your flash memory needs will be different from what you would need to do if you were going to be transferring large amounts of data at one time. Think about your environment and also think about your security needs.

At the end of the day, there is a different type of flash drive memory that will be able to help you with your data transfer no matter what your end goals are. Take a look around and make sure that you familiarize yourself with what is out there before you make your final purchase.

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What is a Computer Flash Drive?

If you have been looking around at computer peripherals, looking for a way to move your data around, you will find that you have many options available to choose from.

One of which is known as a computer flash drive.

If you are in a professional situation where you want to move data from one computer to another, you might have already considered sending the information over to a shared wireless network, or of simply networking the two computers together, but you will find that taking a look and seeing the solutions that a computer flash drive can give you would be a far easier method of achieving this.

A computer flash drive is essentially a device that has flash memory on it and it usually has a USB interface that will allow this to connect to your computer. Once it has been connected, you will find that your computer will simply read it as another drive, a place to which you can copy information or take information away. With this in mind, you will find that you can put virtually any amount of information on your flash drive as long as you do not exceed the memory confines. This is a great deal of help when it comes to copying information from one computer to another.

When you are considering a computer flash drive, the first thing that you need to know is that it is non-volatile. What this means is the information that is stored on the drive will not need to be powered up in order to be maintained. A flash drive can simply sit as it is, with no power running to it and maintain your information in good condition. You will find that this is highly useful when it comes to preserving your data and making sure that you don't lose it in case of any problems occurring. When you want to make sure that your work is backed up in a place that is not reliant on your main source of power, a flash drive will be ideal.

When thinking about computer flash drive, you will find that you have several different sources available to you, a computer flash drive being one of them. These flash drives can be as small as a packet of chewing gum and when you are considering making sure that your data is safe and secure you will find that carrying it around with you may be an idea. This means that no matter where you are you will have access to the data that you need to work. This also means that you won't be dependent on an internet connection and that you will be able to operate independently on many other systems around you.

Take the time to think about what the purchase of a computer flash drive can mean to you. You will find that this is an important part of getting your work done and of keeping it safe in the event of an emergency, so take a look and find out what is going on when it comes to these handy devices.

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Runtime Error and the Trojan Virus Explained

Many computer threats specialize in performing one task-displaying pop-up ads, collecting user data, changing browser settings and can be easily categorized - they are spyware. However there are still a large number of other common threats that cripple your PC differently and perform a variety of different actions and are therefore harder to label.

Runtime errors are one of them. They are the most common Windows error message and infect the majority of computer users.

Their purpose is to serve as a reminder that there are serious problems occurring in your system while a particular program is being "run". This is most often due to the fact that there is a lot of software present on your computer registry the computer cannot work at optimum levels because these programs are conflicting with each other resulting in runtime errors.

A few very common signs that runtime errors are infecting your computer are:

1. Constant error messages

2. A lack of memory

3. Extremely slow startup and

4. Sluggish PC performance

Another serious computer threat is the Trojan virus. These "Trojan horse" programs take their name from the mythical wooden horse that hauled hidden Greek soldiers into the city of Troy. These nasty computer programs carry hidden functionality, often posing as useful applications yet in actual fact, perform Spyware or Adware functions, and/or allow remote access to your PC.

The Trojan Problem Explained

If you are reading this then there is a really good chance that your PC is already infected with a Trojan virus. Trojan viruses can be installed on your machine simply by visiting a website that is carefully crafted by an attacker. When you visit the website, the attacker will send to your PC, code that is designed to be executed by your machine using existing vulnerabilities in software installed on your machine or by vulnerabilities in the operating system itself.

If your PC becomes infected, it can be used by the attacker to send out unsolicited emails to email lists the hacker has targeted. These spam emails can't be traced back to the attacker because they originate on your machine. This is making your PC slow, and the attacker is using your internet bandwidth for free. If you think your internet usage is excessive then this may a contributing factor.

How Did I Get It?

Trojan viruses can be installed on your machine simply by visiting a website that is carefully crafted by an attacker. When you visit the website, the attacker will send to your PC, code that is designed to be executed by your machine using existing vulnerabilities in software installed on your machine or by vulnerabilities in the operating system itself. Many pirate/torrent sites and pornographic sites often infect your PC with viruses, registry errors and malware. DON'T VISIT THEM or they'll keep visiting you.

How Do I Remove It From My Computer

Many of these types of Trojan viruses once installed on your system will keep reinstalling themselves on startup unless you have completely removed the virus from your system including the system registry. Often these viruses will connect to the a server on the internet without your knowledge, notify the attacker and reinstall on the system.

You need to remove all parts of the Trojan virus for a complete virus removal. A good anti-virus program will do the trick.

For Runtime errors, a good registry cleaner will fix your problem and simultaneously increase the speed of your PC and return it to its original performance.

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PC Security

Computers are the most useful and well-known technical gadgets used worldwide. Some uses it for their livelihood, some uses it for playing games on it and some uses it for browsing the Internet world. Among those who use the computer, most of us do not know the proper security steps that can be taken to prevent unauthorized access to their machines. Many of us do not hesitate surfing the Internet wirelessly on any hotspots without knowing the security part, which if turned out to be a Poisoned Hotspot can be very dangerous. Most of the hackers try to sniff data stored in the computer without the owner´s permission. Taking some necessary steps can prevent these.

Types of computer attacks

There can be two types of attacks which a computer might face:

• Active Attack

• Passive Attack

Active attack is something where eavesdropping is on so that the data sniffer can sniff the data which is being transmitted over the network. These attacks are difficult to detect but can be prevented.

Passive attack is done by those who have an intention to destroy other´s network security without having any aim of sniffing their data, but they are harmful as well. These attacks are easy to trace out but can be difficult to protect from those.

Remedies of computer security

The collection of various hardware and software specially designed to protect from data theft and other malicious stuffs are termed as computer security. There can be various solutions to protect the computers from unauthorized access from hackers and crackers. Hackers are those programmers who break the computer security with an intension to steal, destroy or change some data that is also treated as cyber-crime. Whereas, a cracker is a programmer who gains unauthorized access to a computer without having any specific intension as the hackers has. Some proper security tools might include firewall, anti-virus, anti-spyware, proper use of the Operating System and its browser etc. Let us discuss them one by one.

Firewall:- This can also be describes as a protected wall or shell all around the computer to detect and filter out the threats which try to access the computer in an unmeaning full manner. A firewall is the combination of hardware and software that is installed in the machine that helps in controlling the flow of data between computer networks. It helps the computer to protect from the hackers who can sniff data without the owner´s permission.

Those who have Windows XP or Windows Vista as their operating system, for them getting a firewall is not a worry, they just need to make them active to protect themselves from the hackers and other unwanted stuffs. But those who doesn´t have any of those two as their operating system, they need to have any other firewall software which is easily available in the market.

Anti-virus:- One of the most important tools for computer security is the anti-virus software. Though a firewall is always protecting from unwanted access to the computer network, but still some malwares make their way onto the computer by means of some attached file in the email or files from the Internet that the firewall cannot detect. For those malwares the antivirus software can be effective.

Antivirus software´s are easily available in the market that doesn´t cost much. Sometimes it is also bundles with a firewall as well which also includes in the security tool.

Some other security concerns are operating system; the web browsers and many more which should be updated regularly. One should also not click on the links which are there in unwanted emails, as they are might contain viruses and other malwares. Some people also face trouble when they download any free software that in some cases are bundled with viruses and spywares.

VTechCare represents a revolutionary new PC support model for Home Users, Home Professionals and Telecommuters leveraging the expertise and experience developed over the last 20 years in providing excellent technical support to customers across the globe. Our service is safe, secure and efficient.

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How to Choose a Registry Cleaner

Part of having and using a home or work computer is learning how to properly take care of it. If you use the internet, or install programs on your computer, then you are making changes to your computer's registry, which can clog it up with data that you do not need over time. The first part of the battle here is recognizing that you need to find a way to keep your registry gunk free, and the second half of the battle is about choosing a registry cleaner that is going to get the job done for you.

Your computer's registry is like its brain, because there are some very vital settings and pieces of information stored within. This cache of information is truly vital to keeping your system running right. When you install new programs, for example, information is saved into your registry so that it may be accessed later. Unfortunately, when these programs are uninstalled, the registry information does not always go with them. Another unfortunate cause for a clogged registry on your computer is spyware, adware and other garbage. Even when you remove the popups and programs, registry data can remain which can cause problems for your computer.

The answer lies in choosing a registry cleaner that is going to differentiate between the important information in your registry, and what needs to be removed. It is normal for registry errors to occur, but that simply does not mean that you have to put up with them. Avoid allowing your computer to get overloaded by choosing an effective registry cleaner. Most registry cleaners offer free trial versions so that you can test them out before you make a purchase.

However, most of these trial versions do not make any of the repairs, they simply let you know about the errors. There is no real use in knowing that you have registry errors without being able to do anything about them, so rather than rely upon a trial version of a program, conduct a little bit of research yourself on choosing a registry cleaner for the best results.

Choosing a registry cleaner is not difficult. There are a number of sources online that will give reviews and feedback on potential products for your consideration. One example of a registry cleaner is XP Repair Pro, which offers a trial that does actually repair all of the errors that it finds for a total of fifteen days. This program is more than just a registry cleaner, as well, as it also has the capability of defragmenting your registry. What this means is that it will optimize your computer's registry to make it run more quickly and efficiently. The more effective and efficient your computer's registry is, the better your computer will run in the long run. This, above all else, is why choosing a registry cleaner is so important.

Computers need to run as smoothly as possibly to deliver the greatest results. Keeping the registry clean on your Windows XP Pro computer is a big part of keeping it well maintained. Choosing a registry cleaner gives you a chance to take better care of your computer, which will allow it to run more efficiently for much longer.

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All About Laser Pointers And Their Use

A laser will go through the lense of the eye without having any effect, and the lense is what determines vision loss, so laser pointers are not likely to affect your vision. It takes a powerful laser, much more powerful than a pointer, to affect tissue so I don't think your immature friends have done you any harm.

It looks like current green and probably blue, laser diodes are made primarily by frequency doubling. Frequency doubling means that an infrared beam is pointed through a crystal which causes the frequency to double. If the IR beam is 1064 nm, the output beam will be 532 nm green or blue. The extra crystal is the cause of the extra price.

I don't know why normal green led technology isn't used for green pointers. Perhaps no one has perfected it in a small package yet. Anyway, laser diodes are made of materials that have an intrinsic "energy bandgap," which determines the wavelength of light emitted from the laser. Some materials may have a broader bandgap, but not enough to tune the laser over multiple colors.

Those laser pointers used in business presentations and school lectures--is there any danger to the eyes if they are pointed directly? And does the answer change depending upon whether one is talking about humans or dogs or cats, for example? No, those lasers are not dangerous to people or any large animals. Their power is firly low, and the beam is not very precise. The beam shape is a primary factor which makes similar-powered scientific lasers more dangerous. Well-shaped beams can focus to a much smaller spot than irregular beams.

All the same, you will see stars if you look at the beam directly. The brightness level is not too different from looking directly at the sun ,which is dangerous for other reasons, mainly unseen UV and IR light. There is a device called an optical parametric oscillator that can increase the wavelength, i.e. reduce the frequency of a laser. If you want to increase the frequency, i.e. reduce the wavelength of a laser, this can be achieved by using the laser to pump another laser, a dye laser for instance.

Would this device work with a laser pointer? I would like to add something to the end of it rather than mess around with the internal parts. You would use the laser pointer as a pump for the laser you would have to construct outside the laser pointer. No need to take the laser pointer apart, but you would need to build some sophisticated optics for this. Actually the green laser pointers that are commercially available use a red laser to pump another laser, this time green. So they are actually two lasers in one device.

I've been wanting to buy a blue laser pointer but found that the only ones with the technology to create them and who hold the patent are a select few so any such laser pointer would cost someone about $1,000. Green laser pointers cost about $100, and the common red ones cost maybe $20 at most. Why the extreme difference in price? What are these diodes and why are they so difficult to make?

You will have to wait a little while to buy a cheap blue laser pointer. The reason is quite simple. Red laser diodes were invented 15 years ago. Green laser diodes were invented 5 years ago, and blue laser diodes were invented last year. Similar to DVD writers, flat-screen TVs, and other new products, the price drops dramatically as time passes. Mainly, this is because one company owns a patent at first and can chjaarge whatever they want. When the patent expires, or alternate technology is invented, the price comes down.

There is nothing particularly difficult about making the diodes. Figuring out how to make them, which semiconductor materials, deposition, heat-sinking, is the hard part. But like I said some of the laser pointers can cause a little harm to your eyes, so if you want to get one or make one, make sure that you don't point it at anyones eyes. Even though you have friends that point there lasers in your eyes thinking that it is funny, which it isn't, to wrongs don't make a right. Just show them how more muture you are.

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