Input and output

What we think about input and output? What is input? And what is output? Input is any data and instructions entered into the memory of a computer. Such as keyboard,mouse,touch screen,stylus,graphics tablet,scanner,etc. People have a variety of options for entering input into a computer.

Output is data that has been processed into a useful form. That is, computers process data (input) into information (output) . Users view or watch output on a screen, print it, or hear it through speakers,headphones, or earphones. While working with a computer, a users encounters four basic put, such as a web page, includes more than one of these categories.

Beside that, input and output have their own device. An input device is any hardware component that allows users to enter data and instructions into a computer. The following pages discuss a variety of input device.

An output device is any hardware component that conveys information to one or more people. Commonly used output devices include display devices, printers, speakers, headphones, and earphones, fax machines, and fax moderms,multifunction peripherals, and data projectors.