WAEC Data Processing 2025 Theory question 102

Theory question 102

Computer Hardware

Paper 2, Section A: Short-structured questions
Figure 1 is a setup of computer system. Use the setup to answer questions 2(a) to 2(c). (a) Identify the part labelled: (i) A; (ii) B; (iii) C; (iv) D. (b) For each device in the setup, tick (√) the box to show if it is an input device or an output device. (c) Name two devices that can be used for both input and output operations.

Diagram for this question
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Model answer

(a)(i) A – monitor. (ii) B – printer. (iii) C – mouse. (iv) D – keyboard.
(b) A (monitor) – output; B (printer) – output; C (mouse) – input; D (keyboard) – input.
(c) Any two: touch screen; modem; headset with microphone; multifunction printer (print and scan); network card; flash drive/disk drive (storage read and write).

Explanation

A device for both must take data in and send data out, e.g. a touch screen.