How much video memory is needed to store 5 pages of an image, provided that the display resolution
| February 4, 2021 | education
How much video memory is needed to store 5 pages of an image, provided that the display resolution is 640 × 480 and the colors used are 64.
An image with a resolution of 640×480 contains 307200 pixels.
From the equation x = 2 ^ n (where x is the number of colors, n is the size of one point) it follows that one 64-color point takes up 6 bits of memory.
To calculate the required amount of video memory, you need to multiply the total number of points by the amount of memory occupied by one point:
307200 * 6 = 1843200 bits = 230400 bytes = 225 kilobytes.
225 * 5 = 1125 kilobytes = 1.1 megabytes.
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