Components of a computer system

All of the key words from the AS Level OCR Computing book, part one.

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The physical parts of the computer e.g. the keyboard.

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A group of instructions that the hardware needs to tell it what to do.

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Applications software.

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The set of programs that allow the user to do something useful with the computer.

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Operating system.

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This is the programs that allow the hardware to work.

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A groups of instruction that the hardware needs to tell it what to do which are collected together in groups of instruction.

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