What is an input device – 9 Types of Input Devices.

In this article, We will know that what is an input device? Before this, we have already read What is Computer and what is the full form of Computer. So let’s read in detail what is an input device?

What is an Input Device
What is an Input Device

What is an input device?

“The devices which help us to send data to the computer and control the computer are called input devices.”

In Computer, an Input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance Examples of Input devices include a keyboard, mouse, scanners, digital cameras, joysticks, and microphones.

An input device is Computer hardware that sends data to a computer and allows you to interact and control it.

9 most Important input Devices.

The keyboard and mouse are the most important input devices for the computer, it does not matter whether the computer has other input devices or not, but it is necessary to have a keyboard and mouse.

What is an Input Device - Keyboard


The keyboard is an Input device that helps us to feed and control data in the computer, Its looks like a typewriter. There are 104 keys in a keyboard but some special keyboards have more than 104. The keys of the keyboard are divided into four parts.

  • Alphabetical keys
  • Numeric keys
  • Function keys
  • Cursor movement keys

Apart from these, the keyboard also has some common or special keys that are given below.

  • BackSpace Key
  • Shift Key
  • Delete Key
  • Windows Key
  • Enter key
  • Caps Lock key
  • Space bar key
  • Escape
  • Alternate Key
  • Tab Key
  • Control Key
  • Scroll Lock Key

Also Read- What is CPU.
Also Read- What are Software and Hardware.

What is an Input Device - Mouse
What is an Input Device – Mouse


The Mouse is also an Input Devices that help us to move the cursor There are 2 buttons in the mouse (left key and right key) but some special mouse has scroll keys that help us to scroll the screen. Normally left click for Select/Run and right-click to generate the Menu.


A scanner is also an Input Device. It is used to enter information directly into the computer’s memory. This device work like a Xerox machine.

What is an Input Device - Joystick


The joystick is also an Input Device that is used to give input to the computer. mostly it’s used to play games on Computer.

Web Camera

A webcam is a digital camera that’s connected to a computer. It can send live pictures from wherever it’s sited to another location by means of the internet. Some webcams are plugged into computers through USB ports, but others are wireless (wifi).

Also Read- What is a Computer
Also Read- What is an output device.
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What is an Input Device - Bar Code Reader

Bar Code Reader

This device reads bar codes and converts them into electric pulses to be processed by a computer. A bar code is nothing but data coded in form of light and dark bars.

Light Pen

This is an input device that is used to draw lines or figures on a computer screen. It’s touched to the CRT screen where it can detect raster on the screen as it passes.

What is an Input Device - Microphones


It is a kind of Input device which is used to make sound as input. We do connect it with the jack port of the computer system at the front or rear panel of the system and use it.

Optical Mark Recognition

Optical mark recognition (also called optical mark reading and OMR) is the process of capturing human-marked data from document forms such as surveys and tests. They are used to read questionnaires, multiple-choice examination papers in the form of lines or shaded areas.

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