What is the function of an input device?

Answer 1

Input devices are anything that feeds input from the world to your computer.

A very primitive computer could have only a cpu, processing unit and some memory,

It could get no input from any device.

Usually when referring to PC input devices - one can consider -

Keyboard, mouse, web-cams, touch-screens, media buttons(on laptops etc.), microphone

And anything else that feeds input into the local machine.

Cheerz,

spu.

Answer 2

An input device puts information into the computer. The information comes from the user, the environment, the airwaves, or physical documents. Below are some examples of input devices:

Joystick or flight controller - This allows a user to control characters, vehicles and aircraft in computer games.

Keyboard (alpha-numeric) - This allows the user to input numbers and letters into the computer/

Keyboard (musical) - This allows the user to play or compose music on a computer.

Mouse - This allows the user to move a cursor on the screen, drag things on the screen, and make selections.

Scanner (documents) - This allows the user to convert documents and photos into digital image formats.

Webcam - This allows the user to stream video of themselves, transmit such data to others, and take still images and save them into digital formats.

Answer 3

An input device is a device that is connected to a computer in order to input data. An example would be a keyboard, mouse, joystick, scanner, etc.