FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Eight-bit colour stores the colour of each pixel in eight binary digits (bits) which gives 256 colours in total. Twenty-four bits (three bytes) per pixel gives us a possible 16 million (approx.) colours, which is more than the human eye can accurately distinguish.

Detailed explanation-2: -The number, 256, is 2 raised to the 8th power or the 8-bit color depth. This means that each of the RGB channels has 256 shades so there are 256x256x256 or 16, 777, 216 colors in total in this 8-bit RGB system. An 8-bit color system is capable of producing over 16 million colors.

Detailed explanation-3: -8-bit color graphics are a method of storing image information in a computer’s memory or in an image file, so that each pixel is represented by 8 bits (1 byte). The maximum number of colors that can be displayed at any one time is 256 or 28.

Detailed explanation-4: -Color images are displayed using 4 bits (16 colors), 8 bits (256 colors), 16 bits (65 thousand colors) called high color, and 24 bits (16 million colors) called true color. Some cameras and scanners will use 30 or 36 bits per pixel.

Detailed explanation-5: -Many monitor displays use colormaps with 8-bit index numbers, meaning that they can only display 256 different colors at any one time.