Define input and output devices and give two examples of each.

Define input and output devices and give two examples of each.

• A. Input devices send data to a computer (keyboard, mouse); output devices present data from a computer (monitor, printer).
• B. Input devices are displays; output devices are keyboards.
• C. Input devices include printers; output devices include keyboards.
• D. Input devices are network routers; output devices are USB drives.

Answer: (A)

Input devices are used to send information into a computer, while output devices present information from the computer to you. A clear pair of input devices is keyboard and mouse, because you use them to enter text and commands. For output, monitor and printer are common choices since they display on-screen results or produce a physical copy of information. The other options mix up the roles: displays are for showing information (output), keyboards are for entering information (input), printers are for producing output, routers are networking hardware not used to directly input data to a computer, and USB drives are storage devices rather than primary output devices.

Input devices are used to send information into a computer, while output devices present information from the computer to you. A clear pair of input devices is keyboard and mouse, because you use them to enter text and commands. For output, monitor and printer are common choices since they display on-screen results or produce a physical copy of information. The other options mix up the roles: displays are for showing information (output), keyboards are for entering information (input), printers are for producing output, routers are networking hardware not used to directly input data to a computer, and USB drives are storage devices rather than primary output devices.