Computer Systems input and outputs user interfaces e.c.t 5.0 / 5 based on 1 rating ? ICTComputer systems and mobile technologiesGCSEOCR Created by: megmckeeverCreated on: 15-05-14 09:52 What is a CPU? Central processing unit 1 of 5 What is an input device? allows user to enter data into a system Examples include keyboards and scanners. 2 of 5 What is an output device? allows the system to transfer, or display (output) data. Examples include printers and monitors. 3 of 5 What is ROM? read-only memory contains the commands that are designed to be read only, such as the system’s boot-up instructions 4 of 5 What is RAM? random-access memory holds the data needed by the programs currently in use. 5 of 5
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