Question

a computer screen has a resoulution of 1200 by 800 and if each pixel uses 512 colors how many bits are needed to send complete contents of screen

Answer 1

Resolution = 1200 × 800 pixel = 9,60,000 pixels

Each pixel uses 512 colors, hence the number of bits per pixel (n) is:

2ⁿ = 512

n = 9 bits

Hence each pixels uses 9 bits, To show the complete contents of a screen, the number of bits needed is:

Number of bits needed = 9 bits per pixel × 9,60,000 pixels