Science Fair Project Encyclopedia
Dual-ported RAM
Dual-ported RAM is a type of Random Access Memory that allows multiple reads or write to occur at the same time, or nearly the same time, unlike single-ported RAM which only allows one access at a time.
Video RAM or VRAM is a common form of dual-ported dynamic RAM mostly used for video memory, allowing the CPU to draw the image at the same time the video hardware is reading it out to the screen.
Apart from VRAM, most other types of dual-ported RAM are based on static RAM technology.
Most CPUs implement the processor registers as a small dual-ported RAM.
See also: FIFO
12-19-2008 14:25:18
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details