How much video memory is required to store three pages of an image, provided

How much video memory is required to store three pages of an image, provided that the bit depth is 32, and the display resolution is 640 * 350 pixels.

Let’s determine the number of dots (pixels) on the screen: 640 * 350 = 224000 pixels.

If the bit depth of the image is 32, then it takes 5 bits of the binary code to store the state (color) of each pixel (2 ^ 5 = 32).

Therefore, it takes 224000 * 5 bits = 1,120,000 bits to store one page of the image.

1,120,000 bits: 8 = 140,000 bytes (1 byte = 8 bits).

To store 3 pages, you need 3 times more memory:

140,000 * 3 = 420,000 bytes = about 410 KB.