WAEC Computer Studies questions: Input and output devices

22 questions with answers and explanations. Tap an option to check yourself.

All topics Algorithms and flowcharts · 21 Application packages · 25 Computer hardware and the CPU · 21 Computer networks and the internet · 23 Computer security, ethics and safety · 22 Data processing and information · 22 Evolution of computing · 23 Input and output devices · 22 Logic gates and Boolean algebra · 21 Memory and storage devices · 23 Number systems and data representation · 24 Programming languages and BASIC · 22 Software and operating systems · 22

Question 21· Input and output devices· WAEC
At a supermarket checkout, which device reads the product codes on items?
Explanation and discussion
Question 22· Input and output devices· WAEC
A biometric fingerprint scanner used at an exam centre is an
Explanation and discussion

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