What is an input device? State the basic functions of input devices.

An input device is a hardware component that allows users to enter data into a computer system. It acts as a bridge between the human user and the digital world.

Here are some basic functions of input devices:

• Data Entry: Input devices are used to enter data, such as text, numbers, images, and audio, into the computer.
• Control: They can be used to control the computer's operations, for example, by selecting options from a menu or navigating through a document.
• Interaction: Input devices allow users to interact with the computer, providing feedback and commands.

Common Input Devices

• Keyboard: Used to enter text and numbers.
• Mouse: Used to point, click, and drag objects on the screen.
• Touchscreen: Allows users to interact with the computer by touching the screen directly.
• Scanner: Used to convert physical documents, such as images or text, into digital format.
• Microphone: Used to capture audio input, such as voice or music.
• Webcam: Used to capture video input, such as for video conferencing or recording.
• Game Controllers: Specialized input devices used for gaming, such as joysticks, steering wheels, and motion controllers.

These are just a few examples of input devices. The specific input devices used in a computer system depend on the intended purpose and the preferences of the user.