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Peripherals is a term used in computing to describe hardware devices that are connected to a computer but are not part of the core computer system. These devices extend the capabilities of the computer by providing input, output, or storage functionalities.

Input devices allow users to enter data or commands into the computer. Common examples include keyboards, mice, scanners, and microphones. Keyboards are used for typing text and commands, while mice are used for pointing and selecting items on the screen. Scanners convert physical documents or images into digital formats, and microphones capture audio input.

Output devices display or present information from the computer to the user. Monitors are the most common output devices, displaying visual information. Printers produce hard copies of digital documents, and speakers generate audio output.

Storage devices are used to store data, either temporarily or permanently. While internal storage like hard drives and solid-state drives are integral to the computer's operation, external storage devices like USB flash drives, external hard drives, and memory cards are considered peripherals. These allow for easy transfer and backup of data.

Other examples of peripherals include webcams for video conferencing, network interface cards for internet connectivity, and external graphics cards to enhance visual performance. The distinction between a core component and a peripheral can sometimes be fluid, especially with modular computer designs. However, the general concept remains that peripherals are add-on devices that enhance a computer's functionality.