What is Input (Input Definition)

Introduction of Input

In computing, input refers to the commands that a user or external device provides to a computer system. This input can be in the form of text, images, audio, or other types of data, and is used by the computer to perform specific tasks or functions.

Types of Input

There are several types of input, including:

1. Keyboard input: Data entered by a user via a keyboard
2. Mouse input: Commands given by a user via a mouse, such as clicking or scrolling
3. Touchscreen input: Commands given by a user via a touchscreen, such as tapping or swiping
4. Audio input: Voice commands or audio recordings provided by a user or external device
5. Video input: Images or video provided by a user or external device
6. Network input: Data provided by a network or other external device

Input Devices

There are a variety of input devices that can be used to provide input to a computer system. Some examples include:

1. Keyboard: A device with keys that a user can press to enter text or commands
2. Mouse: A device that a user can move to point, click, and scroll on a screen
3. Touchscreen: A screen that a user can touch to interact with a device
4. Microphone: A device that converts audio into digital signals for a computer to process
5. Camera: A device that captures images or video in digital form

Input Processing

Once input is received, the computer must process and interpret it. This can involve converting the input into a format that the computer can understand, such as converting audio input into text or converting image input into a digital file. It can also involve validating the input to ensure that it is in the correct format and contains no errors.

Output

After input has been processed, it can then be used to generate output. This can include displaying text or images on a screen, playing audio, or performing other actions based on the input received.

Conclusion

Input is a crucial aspect of computing, as it allows users and external devices to interact with and control a computer system.

There are many different types of input, such as keyboard, mouse, touchscreen, audio, video, and network input, and a variety of input devices that can be used to provide input.

Once input is received, the computer must process and interpret it, which can include converting and validating the input, before using it to generate output.