Pixel

Short for Picture element.

An image is divided into thousands or millions of pixels, arranged in rows and coloumns.

Individual pixel that make up an image.

Quality of an image depends on resolution.

Numbers of pixels it can display in each page decides the quality.

Each pixel consists of 8bits for Black and White image(4 Black,4 White),

24bits for color image(8 Red, 8 Green, 8 Blue).