What size frame buffer is required to store an image with re

What size frame buffer is required to store an image with resolution 1440 by 900 with 16777216 colors? Assuming a display area aspect ratio of 16/10, specify the pixel ratio for a system with screen resolution 1440 by 900:

Solution

1- we have 16777216 so that is equal to 2²⁴ so the nmber of bits of colours is 24 .

so the frame buffer formula is X*Y* colour depth(in bits) so

frame buffer = 1440*900*24

frame buffer= 31104000 bits

31104000/8=3888000 bytes

3888000/1024=3796.875 KB

frame buffer size is 3796.875 kb

Q2- we have aspect ratio 16/10 and resolution is 1440/900

so aspect ratio is 1280/800 that becomes 8:5