翻訳と辞書
Words near each other
・ video compact disc
・ video compression
・ video conference
・ video conferencing
・ video dial tone
・ video display terminal
・ video electronics standards association
・ video graphics adapter
・ video graphics adaptor
・ video graphics array
video memory
・ video on demand
・ video ram
・ video random-access memory
・ video terminal
・ videotex
・ vienna definition language
・ vienna definition method
・ vienna development method
・ vienna development method specification language


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video memory : FOLDOC
video memory
The memory in a computer's graphics adaptor, used to store the image displayed on a bitmap display. Often this is built using VRAM chips. There is normally a simple correspondence between groups of bits in video memory and the dots or "pixels" on the screen, such that writing to a given group of bits will alter the appearance of a single dot. If each pixel corresponds to eight bits then it can have any of 256 colours (or shades of grey on a monochrome display).
The video display electronics is responsible for reading the data from video memory and converting it into the necessary signals to drive the display. Often this includes a colour palette which converts pixel values into RGB triplets.
(1996-11-01)



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