Input in computer refers to any information or data that is sent to a computer for processing. This information is typically sent to the computer from an external device such as a keyboard, mouse, or touchscreen. Input devices are hardware components that allow users to interact with a computer system by providing data or instructions to the computer. Some common examples of input devices include:
- Keyboard
 - Mouse
 - Microphone (audio input or voice input)
 - Webcam
 - Touchpad
 - Touch screen
 - Graphics Tablet
 - Scanner
 - Switch
 
In addition to these devices, input can also come from a piece of software. Once the data has been entered into the computer, it can be processed and the inputted instruction can be carried out.

