Software refers to a set of programs which is capable of performing some specific tasks on a computer system. They can be broadly classified into two categories - System software and Application software.

A tablet can be considered as a lighter and smaller version of a laptop. On the other hand, an e-reader has been specifically designed for downloading and reading electronic copies of e-books, magazines, etc....

Zooming provides an option to the user to change the view of a document or image. It is applicable in two ways – Zooming in and Zooming out. It usually involves shrinking or stretching of pixels. Panning is...