Tech Tip 01 - 5 Ways to back up your data

The data on your hard drive is the most critical item inside your computer, and the only item which can not be replaced. It may be an unwanted hassle and expense to replace a defective memory module, monitor, or processor, but there is no replacing data once lost.
In addition to the possibility of a simple hard drive failure, the threat of internet borne worms and viruses has become an increasing risk to data loss or corruption. Although you may not be able to provide absolute protection to your hard drive, there are various ways that you can ensure that the data on your hard drive is protected. Five methods of backing up your data are summarized below.

1. USB Flash Drives

Although I am not recommending that flash drives be used for the actual data storage, they are a convenient means of transferring data from one computer to another. Important files can be quickly loaded onto a device such as the MINIDISK-512-DGRY-CS USB 2.0 Flash Drive, and transported to another computer for safe keeping. Installation and operation is extremely simple, and other than perhaps having to install a software driver, the use of a USB flash drive is a matter of having an available USB port on your computer. Just about every computer produced over the last several years has USB ports included, with more modern systems supporting the USB 2.0 standard. USB 2.0 allows for data transfer rates of up to 480 MB/s, which is a tremendous improvement over the original USB speed limit of 12 MB/s, and allows a user to fill their drives with data in a relatively short period of time.
Although the storage capacity of flash drives has increased greatly over the last year or so, users are still limited to common sizes of 512MB and 1GB. Mass storage is obviously not an option, but even 512MB may be enough to backup your "My Documents" folder, several albums of MP3s, or other important files to be stored elsewhere.

2. CD and DVD Writers/Re-Writers

The falling prices of CD and DVD writers/re-writers have made them a staple of just about every modern computer. These devices can typically be found installed in a computer case, but external devices supporting USB 2.0 or Firewire are available for greater flexibility and ease of installation.
A combination drive, such as theNU Technology DBW-521, will provide the user a high speed CD reader/writer, as well as a DVD reader, for under $40. The extremely low price of the drive (and the blank media) makes for an inexpensive means of creating data backups, and the re-writable media increases the convenience by allowing the same disc to be erased and reused many times. The main limitation of using a CD writer for data backups is that the discs are generally limited to a capacity of 700MB per disc. Not nearly enough for a full backup, but adequate for archiving key files.

The popularity of DVD writers/re-writers has surged thanks to dropping prices, and they are pushing the stand alone CD burner towards extinction. DVD media affords the user far more storage capacity than a CD, and DVD burners can generally burn CDs as wells as DVDs. The recent availability of double layer DVD burners, such as the Sony DW-D22A-DO-N, represents a large boost in the capacity of writable DVDs, taking the previous limit of 4.7GB per disc and nearly doubling it to 8.5GB.
With proper storage, CD/DVD media can provide long term storage that can not be jeopardized by hardware failure. The data on a CD or DVD can easily be read by just about any computer, making it a good choice for archiving files that aren't excessively large.

3. External Hard Drives

As the name might imply, external hard drives are generally the same type of drive you might find inside your system, but housed in a smaller, external enclosure of its own. The enclosure will feature at least one data interface (such as Firewire, USB, or Ethernet), and the capacity is only limited by the size of hard drives presently available and the user's budget.
The Ximeta NetDisk is an example of an external hard drive that provides a user the option of connecting an additional 80GB, 120GB, or 160GB of storage to their system by using either a USB 2.0 or Ethernet connection. Installation for such a device is rather simple, and may involve the installation of some basic software, as well as making the necessary connections between the computer and the external enclosure.

The capacity of external hard drives makes them ideal for backing up large volumes of data, and many of these devices simplify the process by including software (or hardware) features to automate the backup.
For example, some Seagate External drives feature a "one-button" backup option right on the case.In addition to being a convenient method of backing up large volumes of files locally, most external hard drives are compact enough to be portable. The inclusion of a common data transfer interface, such as USB, allows an external hard drive to be connected to just about any modern computer for data transfer, or for more than one computer to share the external hard drive as a back up.

4. Additional Hard Drives

By simply adding an additional hard drive to you system, you can protect yourself from data loss by copying it from your primary drive to your secondary drive. The installation of a second hard drive isn't difficult, but does require a basic understanding of the inner working of a computer, which may scare off some users. We do offer a "how-to" section on our site for many tasks such as installing a hard drive into a computer system.

To take the installation of a second hard drive to another level of security and reliability, the hard drives may be installed in a RAID array. RAID stands for a Redundant Array of Independent (or Inexpensive) Disks, and can be configured in several manners. A thorough discussion of RAID and all of its variations would be an article all by itself, but what may be of interest to this discussion is what is known as RAID 1. A RAID 1 array requires two hard drives of equal size to be installed on a RAID controller, which will then mirror one drive to the other in real time. Many motherboards now come with RAID controllers onboard, but the addition of a PCI slot controller card, such as the Silicon Image Sil0680, is an inexpensive purchase that will add RAID to any system. With a RAID 1 array in place, if one hard drive should ever fail, the system won't miss a best by continuing to run on the remaining good drive, and alert the user that one drive may need to be replaced.


5. Online Storage

Online services, such as Xdrive, allow users to upload their files to a server for safe keeping. Although it may be convenient to have the data available wherever an internet connection is available, there are a few limitations.
The services generally charge a monthly fee relative to the amount of storage space required. At Xdrive, for example, 5GB of storage costs $9.95 per month, which can quickly add up to more than one would spend on any of the other options discussed.
Security is supposed to be very tight on these services, but no matter how secure it may seem, it is still just a password keeping prying eyes from your potentially sensitive documents.
The speed of your internet connection will also weigh heavily on the convenience of your backup, and no matter what type of connection you have; it can't compete with local data transfer rates.

Final Words

Although not a comprehensive list of options available for backing up your data, the five items listed provide some simple and relatively affordable means to ensure that your data is not lost. Data loss is an extremely frustrating and potentially costly situation, but one that can be avoided.

by Jason Kohrs

Hard Drives: ATA versus SATA

The performance of computer systems has been steadily increasing as faster processors, memory, and video cards are continuously being developed. The one key component that is often neglected when looking at improving the performance of a computer system is the hard drive. Hard drive manufacturers have been constantly evolving the basic hard drive used in modern computer systems for the last 25 years, and the last few years have seen some exciting developments from faster spindle speeds, larger caches, better reliability, and increased data transmission speeds.
The drive type used most in consumer grade computers is the hearty ATA type drive (commonly called an IDE drive). The ATA standard dates back to 1986 and is based on a 16-bit parallel interface has undergone many evolutions since its introduction to increase the speed and size of the drives that it can support. The latest standard is ATA-7 (first introduced in 2001 by the T13 Technical Committee (the group responsible for the ATA standard)) which supports data transfer rates up to 133MB/sec. This is expected to be the last update for the parallel ATA standard.

As long ago as 2000 it was seen that the parallel ATA standard was maxing out its limitations as to what it could handle. With data rates hitting the 133MB/sec mark on a parallel cable, you are inviting all sorts of problems because of signal timing, EMI (electromagnetic interference) and other data integrity issues; thus industry leaders got together and came up with a new standard known as Serial ATA (SATA). SATA has only been around a few years, but is destined to become “the standard” due to several benefits to be addressed in this Tech Tip.
The two technologies that we will be looking at are: ATA (Advanced Technology Attachment) – a 16-bit parallel interface used for controlling computer drives. Introduced in 1986, it has undergone many evolutions in the last 18+ years, with the latest version being called ATA-7. Wherever an item is referred to as being an ATA device, it is commonly a Parallel ATA device. ATA devices are also commonly called IDE, EIDE, Ultra-ATA, Ultra-DMA, ATAPI, PATA, etc. (each of these acronyms actually do refer to very specific items, but are commonly interchanged) SATA (Serial Advanced Technology Attachment) – a 1-bit serial evolution of the Parallel ATA physical storage interface.

Basic Features & Connections

SATA drives are easy to distinguish from their ATA cousins by the different data and power connections found on the back of the drives. A side-by-side comparison of the two interfaces can be seen in this PDF from Maxtor, and the following covers many of the differences…

Standard ATA drives, such as this 200GB Western Digital model, have somewhat bulky, two inch wide ribbon cable with 40-pin data connections and receive the 5V necessary to power them from the familiar 4-pin connection. The basic data cables for these drives have looked the same for years. A change was made with the introduction of the ATA-5 standard to better improve the signal quality by making an 80 wire cable used on the 40-pin connector (these are commonly called 40-pin/80-wire cables). To improve airflow within the computer system some manufacturers resorted to literally folding over the ribbon cable and taping it into that position. Another recent physical change also came with the advent of rounded cables. The performance of the rounded cables is equal to that of the flat ribbon, but many prefer the improved system air flow afforded, ease of wire management, and cooler appearance that come with them.

SATA drives, such as this 120GB Western Digital model, have a half inch wide, 7 “blade and beam” data connection, which results in a much thinner and easier to manage data cable. These cables take the convenience of the ATA rounded cables to the next level by being even narrower, more flexible and capable of being longer without fear of data loss. SATA cables have a maximum length of 1 meter (39.37 inches), which is much greater than the recommended 18 inch cable for ATA drives. The reduced footprint of SATA data connections frees up space on motherboards, potentially allowing for more convenient layouts and room for more onboard features!
A 15-pin power connection delivers the 250mV of necessary power to SATA drives. 15-pins for a SATA device sounds like it would require a much larger power cable than a 4-pin ATA device, but in reality the two power connectors are just about the same height. For the time being, many SATA drives are also coming with a legacy 4-pin power connector for convenience.
Many modern motherboards, such as this Chaintech motherboard, come with SATA drive connections onboard (many also including the ATA connectors as well for legacy drive compatibility), and new power supplies, such as this Ultra X-Connect, generally feature a few of the necessary 15-pin power connections, making it easy to use these drives on new systems. Older systems can easily be upgraded to support SATA drives by use of adapters, such as this PCI slot SATA controller and this 4-pin to 15-pin SATA power adapter.
Optical drives are also becoming more readily available with SATA connections. Drives such as the Plextor PX-712SA take advantage of the new interface, although the performance will not be any greater than a comparable optical drive with an ATA connection.

Performance

In addition to being more convenient to install and drawing less power, SATA drives have performance benefits that really set them apart from ATA drives.
The most interesting performance feature of SATA is the maximum bandwidth possible. As we have noted, the evolution of ATA drives has seen the data transfer rate reach its maximum at 133 MB/second, where the current SATA standard provides data transfers of up to 150 MB/second. The overall performance increase of SATA over ATA can currently be expected to be up to 5% (according to Seagate), but improvements in SATA technology will surely improve on that.
The future of SATA holds great things for those wanting even more speed, as drives with 300 MB/second transfer rates (SATA II) will be readily available in 2005, and by 2008 speeds of up to 600 MB/second can be expected. Those speeds are incredible, and are hard to imagine at this point.
Another performance benefit found on SATA drives is their built-in hot-swap capabilities. SATA drives can be brought on and offline without shutting down the computer system, providing a serious benefit to those who can’t afford downtime, or who want to move drives in and out of operation quickly. The higher number of wires in the power connection is partially explained by this, as six of the fifteen wires are dedicated to allowing the hot-swap feature.

Price

Comparing ATA drives to SATA drives can be tricky given all of the variables, but in general it is the case that SATA drives will still cost just a bit more than a comparable ATA drive. The gap is closing rapidly though, and as SATA drives gain in popularity and availability a distinct shift in prices can be expected. Considering the benefits of SATA over ATA, the potential difference of a few dollars can easily be justified when considering an upgrade. Computer Geeks currently has a limited selection of SATA drives, but several technical sites, such as The Tech Zone and The Tech Lounge, offer real time price guides to see how comparable drives stack up.

Final Words

The current SATA standard provides significant benefits over ATA in terms of convenience, power consumption and, most importantly, performance. The main thing ATA has going for it right now is history, as it has been the standard for so long that it will not likely disappear any time soon. The future of SATA will be even more interesting as speed increases will help hard drive development keep pace with other key system components.

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

Sound Card Buyer's Guide

Do You Need a Sound Card?

If you want to buy a sound card, you should ask yourself whether you really need one. The motherboards of today come equipped with great on-board sound. Some motherboards even have support for 5.1 surround sound and come with a range of audio optical ports. So if you plan on using your computer to listen to music, play games, or any other basic things to do with sound, you should definitely consider staying with on-board sound.

On the other hand, there are two good reasons why you would want to buy a sound card:

Producing: If you're producing music you'll need a high quality sound card for the very best sound quality. Your sound card will probably need some extra ports/connections that on-board sound doesn't provide.

Gaming: If you want the very best gaming experience possible, that means having the very best sound. So you'll want a sound card to do this. You can probably pick up a decent sound card for gaming at 100 bucks or less.

Surround Sound

An important factor in choosing your sound card is the sound standards that it supports. Most high-end sound cards support what is called EAX and 5.1 surround sound. This means you can hook up to 5 speakers to your sound card for a great 3D sound experience. Some cards even support the newer 7.1 surround sound.

Special Features

If you need some particular type of feature on your sound card, make sure you take this into account. Music producers will have the most needs, such as multi-channel support, MIDI support, good signal to noise ratio, and plenty of connectivity options if needed. Gamers won't need to be so picky with their sound card, surround sound is probably their largest concern.

Finally, if you're buying a high-end sound card, make sure your computer will be able to take advantage of it. There's no point having a great sound card if your CPU can't handle it. This is an important point to consider before going out and buying your sound card.

Check out Julien's website on how to Build Gaming Computers. It includes information on how to choose the best components for custom gaming computers.

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


Malaysia Online : Related Link
guide to buying hard drives
guide to buying laptop computer
guide to buying webcam

Bluetooth : Connect and Share on the Move

In the last few years, mobile industry has gone through a dramatic change in terms of technology. The so called idiom “Necessity is the mother of invention,” fits well when it comes to mobile phones. Since its inception, the industry has achieved the top place in the technically advanced world. From voice centric phones to 3G – the journey is still going on. With time, consumers preferences are also changing and latest design and technologically advanced phones are in much demand in the mobile market. To cater the ever-growing needs of the consumers, mobile manufacturers are launching handsets that are feature packed with cutting-edge design and latest technology.

One of the latest advancement in the mobile phones is the introduction of Bluetooth wireless technology. Bluetooth is a technology, which is used for connecting and sharing data with other compatible devices including computers, Laptops, printers and other devices without using a wire. Bluetooth works on radio waves and data sharing can be done up to 10 meter of range.

Benefits of Bluetooth mobile phones:

In the present time almost all mobile phones are Bluetooth enabled. It is one of the best features that a consumer looks for while purchasing the handset. With a Bluetooth enabled phone, users can get the following benefits:

Data sharing between compatible devices can be done without using a wire.
Data sharing can be done anytime-anywhere as it does not require any data lead or CD drive while sharing.
With Bluetooth enabled handset, users can enjoy mobile internet on the move.
Wire-free headset that comes with mobile phones is used for safe driving.
In some handsets, Stereo Bluetooth headset is used for listening music.

Bluetooth has become a common feature of almost all mobile phones. Users can share all types of documents including music tracks, data files, images and video clips. Thanks to the technology and the mobile industry who have brought such a wonderful feature in the mini gadget.

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

Required Parts to Building a Gaming PC

If you are new to building your own custom gaming computer, this article will introduce you to the main components that make up a gaming PC. These components will be the guts of your gaming machine, so you need to choose them carefully. Starting with perhaps the most important part of any computer system:

CPU / Processor

The Central Processing Unit (also known as the processor) is considered the brains of a computer. It does all the mathematical calculations that the software asks it to. Without a decent CPU in your gaming PC, your games won't run very fast.

Motherboard

If the CPU is the brains of a computer, then the motherboard is the heart. All other components connect to the motherboard one way or another, so it acts as the hub of all the components in your PC. If you lack a good motherboard in your system, your gaming PC won't perform well no matter how good your other components are.

RAM

The RAM (Random Access Memory) in a computer is the memory that running programs rely on. The more RAM you put in your gaming PC, the faster your programs and games will run.

Hard Drive

The hard drive is used to store all your programs and data. You need a hard drive big enough to fit all your stuff on it, without it clogging up due to lack of room.

Graphics Card

The graphics card (also known as video card) will be one of the most important parts of your gaming PC. It is the component responsible for drawing all the 3D graphics and special effects that you see in the games you play. You need to get a good graphics card to be able to play the latest games in all their glory.

Case and Power Supply

Pretty self explanatory, the computer case houses all your precious little components under one roof. The power supply provides power to your PC. These two components are essential for a working gaming PC.

Conclusion

We have covered the main workhorse components that you will need to build your gaming PC with. You should also consider other components such as a sound card, networking card, and CD/DVD Drive, amongst others, to complete your gaming PC.
If you want to learn more about building a gaming PC, check out Julien’s website on How to Build Gaming Computers. It includes information on how to choose the best components for custom gaming computers, and product reviews of the best gaming hardware.

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

Safety Tips to Building a Computer

There are some important precautions you should take into account when building a computer to ensure the safety of you and your computer parts. This article gives you some helpful tips on building your computer in the safest way possible.

Stay Safe With Electricity

Electricity is an important issue to consider with dangerous implications for those who ignore it. When building your computer, be 100% sure that the power supply is disconnected from the mains. Also make sure that all network cables and telephone lines are disconnected from the computer.
Another electricity safety tip is to only turn the power on to your computer when the case cover is on. Don't ever work on the inside of your computer with the power plugged in and turned on.

Be Aware of Static Electricity

Static electricity is a real hazard than can cause significant damage to your computer components. To prevent this from happening, follow these simple tips:
- Always wear an antistatic wrist band when building your computer.
- Keep sensitive components in the antistatic bags that they came with, and only remove them from the bag when you are ready to install that component.
- Try to handle your computer components by their edges only.
- Avoid building your computer in areas of high static such as carpeted areas. If you can, try to avoid wearing clothing such as those made of synthetics as they may create static.

Use the Right Tools for the Job

These days, building a computer doesn't require many tools at all. But if you're going to be using a tool, make sure you use the right one for the job. Some tools that you may need for assembly are:
- Phillips screwdriver
- Flat nose screwdriver
- Pliers
- Antistatic wrist band (highly recommended)
- Nut driver (optional)


Conclusion

After reading this article you should now be aware of the main safety issues you need to consider when building a computer. Follow this advice and you will greatly reduce the risk of damaging your computer, or yourself.
Check out Julien's website on How to Build Gaming Computers to learn all about building a custom gaming PC.

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


Malaysia Online : Related Link
upgrade your pc with these computer parts
upgrading your computer easier done than thought

Most Efficient Way to Upgrade PC for Windows Vista

You want to use the new Windows Vista operating system with all its 3D effects, animations and transparencies on your desktop PC? The aesthetically pleasing user interface called Windows Aero can be found in all Vista editions, except Home Basic, but you must first be sure your PC supports new Windows eye candies. It it doesn't, the most efficient way to upgrade your computer for Microsoft's new OS and its user interface is to upgrade your video card and a main system memory.

What Windows Vista and Its Graphics Interface Require?

Windows Vista editions featuring Aero desktop have high PC hardware requirements. You must have a processor with at least 1GHz speed, a 1GB of system memory, a 40 GB hard drive with a minimum of 15GB of available space and a 128MB video card supporting DirectX 9 graphics, WDDM Driver, Pixel Shader 2.0 and 32 bits per pixel. You will also need a DVD-ROM drive, since Vista is sold on DVD. You can check if your system is Vista Aero-ready using Windows Vista Upgrade Advisor software, which is available for download at Microsoft's website.

Why Should I Focused on Video Card and Main Memory?

Your computer's Windows Aero capability will most likely depend on a graphics card and a main memory, since desktop processors slower than 1GHz and hard drives smaller than 40GB were nowhere to be found in stores in a last a couple of years. Assuming your PC isn't so old, the only possible bottlenecks could be video card, since the non-Vista graphics cards are still present on the market, and a memory, because the majority of home computers have less than 1GB.
Having Vista Aero in mind, remember that is more effective to pay for a new graphics card and an additional memory module, than paying the same amount for the new processor, a bigger and faster hard drive and a new motherboard. Contrary to video card and memory, the CPU, hard disc and mainboard do not have major impact on computer's graphics performance required by Aero.

How Much Money Do I Need for Upgrade?

You can find the Windows Vista Aero-ready graphics cards on the U.S. market starting at around $60. The 1GB memory modules are priced at around $100. If you already have 512MB and one free memory slot, you can just buy an additional 512MB module for a total of 1GB. The 512 memory costs approximately $50.

On What Else Should I Pay Attention?

If you plan to buy and install these hardware components by yourself, you should pay attention on graphics card's and memory's compatibility with your motherboard. For example, there are cards that fit in AGP slot and those for PCI Express slot. Also, there are different types of memory modules, such as DDR and DDR2.
This Windows Vista upgrade advice is given by GraphicsDeals.com staff. You can check the best NVIDIA and ATI video/graphics card prices at http://graphicsdeals.com

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