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Computing - Computer A computer is a device which accepts...

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Computer - A computer is a device which accepts input data, processes it and then produces them as output and it can be stored and recalled later. Data - Data is the raw material for data processing - is a collection of unprocessed items - relate to facts and transactions (interviews ; the data collected in questionnaires) Information - Information is data that has been processed which brings meaningful to the person who receive it - Processed data (report on the survey) Input - is any data or instructions entered into the memory of a computer Input device - any hardware component that used to provide data and control signal to a computing system. CPU - is known as the heart of the processor or system unit ; microprocessor Memory ALU (Arithmetic and logic unit) Perform calculation , comparison and logic operation Control unit Direct and coordinate most of the operation of a computer 4 basic operation of CPU 1. Fetch - obtaining program data or instruction from memory 2. Decode - translate the instruction into signals 3.
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