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GCSE Computer Science · key term
Values that a computer stores or processes, such as numbers or information about a button press.
Used by OCR
Paper 1
Revise: Purpose of the CPUThe Central Processing Unit (CPU) is the processor that carries out program instructions, processes data and controls the computer’s operations. A program is a set of instructions telling the computer what to do. Instructions are commands; data is the information those commands act on.
When explaining the CPU’s purpose, say that it processes data and executes program instructions; calling it the computer’s ‘brain’ is not enough.
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