ASIDE FROM processor speed, computer memory (RAM) has the biggest impact on how fast your computer performs.
If your computer does not have enough memory for the tasks you are asking it to perform, increasing the amount of memory is the single best thing that you can do to up the performance level.
Not all memory is created equal, though. It's important, says Zack Nizam, general manager of US-based computer retailer City Computer, to take note of the details of your memory before buying more or replacing what you currently have.
Here's what to look for when making your next memory purchase.
First, know what type of memory you need. Not all RAM is created equal. Today, there are no fewer than three types of memory commonly found in computers: SDRAM, DDR-RAM, and RDRAM.
SDRAM is the most inexpensive and the slowest performing. DDR-RAM -short for "double data rate RAM" -is used in most mid-range PCs today. It performs slightly better than SDRAM.
RDRAM is the most expensive type of RAM, and it's typically found in today's highest-end computers.
Regardless of which type of RAM you would like to use, you'll have to stick to the type that is currently in your computer.
Check the manual that came with your computer, or contact the computer dealer who sold you the machine to find out the type of RAM that you need.
Also pay attention to the speed of the RAM that you buy. The speed rating of memory chips is measured in nanoseconds (ns). Today you'll find chips rated from 60 to 80 ns, with 60 ns being the fastest. Go for the fastest speed that your computer can handle. The faster your memory, the speedier your computer will be.
When purchasing RAM, pay attention to details of the memory modules, too. It's best if you can determine the manufacturer of the RAM if you are upgrading existing RAM. Often the name of the manufacturer will be imprinted on the chips themselves.
If you can't determine the manufacturer of the RAM in your computer, note some of the details of the RAM's construction.
High-quality personal computers today have memory compo- nents with gold-plated connectors -the end that fits into your motherboard.
Lower-end models use tin. Whatever your model uses, be sure your new memory modules have materials consistent with what's on your current memory.
Be sure you do not "downgrade" the type of memory installed in your computer.
Before you buy, verify your current memory speed. For a fool- proof way of upgrading, you should physically remove your memory chips and bring the chip with you when you purchasing new one to be sure.
If purchasing online, utilise a memory locator tools such as the one found on Crucial.com's Web site (http://www.crucial.com). - DPA