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Hardware and Software  

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Hardware and Software Required There are two main types of components required for a system to work. These are: * Hardware - The parts of a computer that you can see and you can handle; the exterior components of the computer. * Software - The actual programs that allow the hardware to do a useful job. Hardware The main components of an ICT system include the following: * Input devices - these enable the data to enter the system. This could be through keyboard, scanner, digital camera, etc. * Central Processing Unit (CPU) - the brain of the computer. This part of the hardware stores and processes data. It has three parts: ALU (arithmetic and logic unit; it performs all the arithmetic and logic operations), the control unit, and the memory. * Backing storage - consists of the disk drives, tape drives, RW-CD (read/write compact disk), RW-DVD (read/write digital versatile disk), etc. used to store data...

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