n. One who computes.n. an electronic device for performing calculations automatically. It consists of a clock to provide voltage pulses to synchronize the operations of the devices within the computer, a central processing unit, where the arithmetical and logical operations are performed on data, a random-access memory, where the programs and data are stored for rapid access, devices to input data and output results, and various other peripheral devices of widely varied function, as well as circuitry to support the main operations.n. same as digital computer.