What is I/O devices?

I/O (Input/Output) devices are hardware components that allow a computer system to interact with the external world. They facilitate the transfer of data between the computer and users, other devices, or storage media. Input devices, such as keyboards, mice, and scanners, allow users to enter data and commands into the computer. Output devices, such as monitors, printers, and speakers, display or present data processed by the computer. Common use cases involve user interaction, data acquisition, and control of external systems.