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memory

By karim ·
1- what is the viruel memory , and why i use it?
2- what is VRAM ?

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by dmiles In reply to memory

A technique your operating system uses to make up for a lack of actual physical memory. When your computer needs more memory than it actually has installed, it uses the hard drive as virtual memory. Just as data is saved and read from memory, but at a much higher speed, the system does this on the hard drive. Due to the mechanical nature of the hard drive, it is slower. This explains why your hard drive may be quite active while it appears you are doing nothing. It also explains a lot of drawbacks on performance.

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by dmiles In reply to memory

A technique your operating system uses to make up for a lack of actual physical memory. When your computer needs more memory than it actually has installed, it uses the hard drive as virtual memory. Just as data is saved and read from memory, but at a much higher speed, the system does this on the hard drive. Due to the mechanical nature of the hard drive, it is slower. This explains why your hard drive may be quite active while it appears you are doing nothing. It also explains a lot of drawbacks on performance.

VIDEO RAM (VRAM)

VRAM is a video version of FPM technology. VRAM typically has two ports instead of one, which allows the memory to allocate one channel to refreshing the screen while the other is focused on changing the images on the screen. This works much more efficiently than regular DRAM when it comes to video applications. However, since video memory chips are used in much lower quantities than main memory chips, they tend to be more expensive. So, a system designer may choose to use regular DRAM in a video subsystem, depending on whether cost or performance is the design objective.

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by TheChas In reply to memory

Just some added information:

Virtual memory is also referred to as the 'swap' or 'page' file on Windows systems.

Why? Most applications use a LOT of memory from time to time. When Windows 95 was developed, RAM was expensive, and virtual memory was an easy way to get more memory without making computers too expensive.

I recommend for most systems that you have a minimum of 1GB combined physical RAM and virtual memory.

There are good descriptions of how to set up virtual memory at:

http://www.aumha.org/win5/a/xpvm.htm

http://www.bootdisk.com/swapfile.htm

Chas

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by ashish_1520 In reply to memory

my answer is same as of answer2

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