Discount Computer Parts Online
- Learn How and Where to Buy Discount Computer Parts and Laptops Online -



Buying Guide

Discount Computer Systems
Discount Laptops/Notebooks
Discount Motherboards
Discount CPUs
Discount Computer Memory
Discount CD-RW / DVD-RW
Discount Floppy Disk Drives
Discount Hard Drives
Discount Sound Cards
Discount Printers
Discount Network Cards
Discount Mouse
Discount Keyboards
Discount Computer Monitors
Discount Modems


Computer memory is called RAM (Random Access Memory).  Although RAM is the storage place of data, the data is volatile.  Once the computer is rebooted or switched off, the memory is gone. 

Heres how it works.  Firstly, data from secondary storage (mentioned below) would be sent to the RAM.  RAM is useful for the CPU to have quick access to the data frequently to perform tasks.  The CPU would fetch these data as it needs them.  Therefore, the more RAM you have as reserve, the faster your tasks would be done.

Memory that is permanently stored is called secondary storage.  Secondary storage comes in various forms, such as hard disk, floppy disk, and optical disk.

Types of RAM

The type of RAM depends on the type your motherboard can support.  Nowadays, the standard type of RAM is DDR, which is faster than the older types, SIMM, DIMM, RIMM, EDO, and SD RAM.

Sizes / Capacities of RAM

RAM comes in memory modules.  As of this writing, 128 MB of RAM is considered the minimum, for light use like word processing and Internet access.  If you can afford it, I recommend that you get at least 512 MB.  You can multi-task (use more than one program at the same time) without affecting much of the speed of each program. 

The maximum amount of RAM per bank also depends on how much your motherboard can support.  Also, check the number of memory banks that your motherboard has to know the limit you can buy.

If your motherboard has built-in video with shared memory, then you need to allocate some RAM for it.  Refer to Video Card section for more details

Bandwidth of RAM

The bandwidth of RAM reflects how fast it runs.  The typical speed of RAMs is 266 MHz, 333 MHz, and 400 MHz.  Needless to say, the faster your RAM is, the more instructions the CPU can perform.  You also have to check the maximum speed that your motherboard can support.