COMPUTER NETWORKING

Detailed explanation-1: -The PPI/PPCM of a computer display is related to the size of the display in inches/centimetres and the total number of pixels in the horizontal and vertical directions. This measurement is often referred to as dots per inch, though that measurement more accurately refers to the resolution of a computer printer.

Detailed explanation-2: -Pixels per inch (PPI) refers to the number of pixels contained within each inch of a digital image. It also refers to the set number of pixels a screen can display. Generally speaking, the higher the PPI, the better the image quality. Lower resolution images contain larger pixels in fewer numbers.

Detailed explanation-3: -Pixels in a photographic image The number of pixels per unit of length in an image is called the image resolution, usually measured in pixels per inch (ppi). An image with a high resolution has more pixels (and therefore a larger file size) than an image of the same dimensions with a low resolution.

Detailed explanation-4: -A pixel is essentially a unit of measurement. Its name is derived from the words “picture” and “element”, and Techopedia defines it as “the smallest unit of a digital image or graphic that can be displayed and represented on a digital display device.”