Input/ Output, processing, communication, storage devices.
Input/ Output Devices.
input output deviceIn computing, input/output or Input/Output is the communication between an information processing system and the outside world, possibly a human or another information processing system. Inputs are the signals or data received by the system, and outputs are the signals or data sent from it.
Processing devices in a computer are responsible for controlling the storage and retrieval of information. The information is processed by the computer processor (CPU), which performs data calculations, data comparisons, and data copying with the information from the processing devices. The CPU then saves that information to the computer memory (RAM).