A peripheral device, like a keyboard, hard drive, mouse, etc., connects to the computer, either internally or externally. Learn what a peripheral device is and how it differs from a core component of a computer system. Find out the types and examples of input, output, and input/output devices. There are some peripheral devices found in computer systems including digital incremental plotters, optical and magnetic readers, analog to digital converters, and several data acquisition equipment. Explore types of peripheral devices, their functions, and real-world examples. Learn how these devices enhance your computer experience.