A peripheral is a device attached to a computer. The function of a peripheral is to enhance the host computer's usability and/or expend its capabilities.
Common peripherals include
- Input device: keyboard, mouse, trackpad, touchscreen, microphone, webcam, scanner, barcode reader, etc.
- Output device: monitor, printer, plotter, speaker, tec.
- Removable storage device: external hard drive, external CD/DVD Drive, flash drive, memory card reader, etc.