Computer systems.

... COMPUTER SYSTEMS The computer system consists of the actual computer it self. Additional devices are called peripherals. A typical computer system is like any other desktop computer, these are known as microcomputers. Desktop computers are used for commercial applications, these process large amounts of data Output Device- a device where data moves out of the computer system, so that the user can view it. Input Device- a device used by the user to input data to the computer system. Storage Device- device such as tape/disk, which stores data. Microcomputers, which can be operated using re-chargeable batteries, is called a lap-top computer. The CPU is known as the brain of the computer, all the instructions are carried out here. The control unit is a part of the CPU, which controls the timing and executions of individual instructions. ALU (arithmetic and logic unit) where calculations are carried and logical comparisons are made. IAS (immediate access store) also known as

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