Computer Science · Oct / Nov 2017 · Paper 13 · Question 4
2210
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Six components of a computer system and six descriptions are shown. Draw a line to match each component with the most suitable description. Component Description Arithmetic Logic Unit (ALU) Buses Control Unit (CU) Immediate Access Store (IAS) Input/Output Registers Used to connect together the internal components of the CPU. Used to carry out calculations on data. Used to temporarily hold data and instructions during processing. Used to allow interaction with the computer. Used to hold data and instructions before they are processed. Used to manage the flow of data through the CPU. [5]
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