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About RAM

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by krisdevs

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what is Video Ram? and
how does a scanner works (its techbique)

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by thechas

Video RAM is a special class of RAM that is optimized for the speed requirements of video processing.

On some PCs, video RAM is actually a section of regular memory that is 'reserved' for the video process.

A scanner works much the same as a photo-copier.
It shines a bright light onto the object to be scanned, and reads the reflected light 1 pixel width at a time.
The resulting digital data is arranged into an image.

Very basic description.

Chas

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