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RAM to support a computer screen display

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One reason GUIs were initially slow to be adopted was the cost of the hardware needed to support them. How much video RAM is needed to support a 25 line X 80 row character monochrome text screen? How much for a 1024 X 768 pixel 24-bit color bitmap? What was the cost of this RAM at 1980 prices ($5/KB)? How much is it now?

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The solution shows how to calculate the amount of RAM needed to support a specific resolution of a computer screen.

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Hello and thank you for posting your problem to Brainmass.

There are 128 standard ASCII characters.

While this means that essentially we need only 7 bits for the entire ASCII set, a standard ASCII character requires one byte (8 bits) of memory - the MSB is set to ...

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