The functional components of a digital computer are

1.Input device

2.Printer

3.Central processing unit

4.Memory

5.Output device

A1, 2, 3 & 4 only

B1, 4 & 5 only

C1, 3, 4 & 5 only ✓ Correct

D3, 4 & 5 only

Correct answer: (C) 1, 3, 4 & 5 only

Explanation

The functional components of a digital computer are Statement 1 the input device, Statement 3 the central processing unit, Statement 4 the memory and Statement 5 the output device.

The input device feeds data in, the CPU processes it, memory stores it and the output device presents the results.

Statement 2 the printer is only one particular output device, not a general functional component.

The central processing unit contains the control unit and the arithmetic logic unit that carry out instructions.

Memory holds the programs and data the processor is working with.

Together input, processing, storage and output describe the basic information-processing cycle of a computer.

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