Touch Screen and Operating System

By Nazish Qayum

What is a touch screen?

A display device that allows a user to interact with a computer by touching areas on the screen. A monitor or other flat surface with a sensitive panel directly on the screen that registers the touch of a finger as an input. A touch screen allows the user to interact with a device without a mouse or keyboard and is often used with smartphones. The picture is an example of a smartphone with a touch screen; this phone has no physical keyboard, and all user input is received via touch.

What is an operating system?

An operating system or OS is a software program that enables the computer hardware to communicate and operate with the computer software. Without a computer operating system, a computer and software programs would be useless. The picture to the right is an example of microsoft windows XP, a popular operating system and what the box may look like if you were to purchase it from a local retail store.