JAMB and WAEC Computer Studies questions

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

All topics Algorithms and flowcharts · 39 Application packages · 46 Computer hardware and the CPU · 41 Computer networks and the internet · 45 Computer security, ethics and safety · 40 Data processing and information · 40 Evolution of computing · 42 Input and output devices · 40 Logic gates and Boolean algebra · 39 Memory and storage devices · 44 Number systems and data representation · 47 Programming languages and BASIC · 43 Software and operating systems · 42

Question 501· Programming languages and BASIC· WAEC
An interpreter
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Answer: B. translates and executes a program one line at a time
Explanation and discussion
Question 502· Programming languages and BASIC· JAMB
In BASIC, after 10 LET X = 4 and 20 LET Y = X * 3 + 2, the value of Y is
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Answer: A. 14
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Question 503· Programming languages and BASIC· JAMB
What does this BASIC program print? 10 LET A = 5 20 LET B = A ^ 2 − 3 30 PRINT B
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Answer: A. 22
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Question 504· Programming languages and BASIC· JAMB
A logic error is one that
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Answer: D. causes wrong results even though the program runs
Explanation and discussion
Question 505· Programming languages and BASIC· WAEC
A translator that converts a whole high-level program into machine code before running it is a
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Answer: B. compiler
Explanation and discussion
Question 506· Programming languages and BASIC· JAMB
Which of these is a low-level language?
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Answer: B. assembly language
Explanation and discussion
Question 507· Software and operating systems· WAEC
Restarting a computer that is already on, without switching off the power, is a
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Answer: D. warm boot
Explanation and discussion
Question 508· Software and operating systems· JAMB
Multitasking means
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Answer: B. running more than one program at the same time
Explanation and discussion
Question 509· Software and operating systems· JAMB
The software licence that allows use free of charge but keeps the code closed is
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Answer: B. freeware
Explanation and discussion
Question 510· Software and operating systems· WAEC
An operating system that serves many users at terminals by giving each a short slice of CPU time is
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Answer: B. time-sharing
Explanation and discussion
Question 511· Software and operating systems· WAEC
Utility software includes
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Answer: C. antivirus and disk defragmenters
Explanation and discussion
Question 512· Software and operating systems· WAEC
Open-source software is software whose
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Answer: B. source code is freely available to study and modify
Explanation and discussion
Question 513· Software and operating systems· WAEC
A function of an operating system is
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Answer: A. managing files and memory
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Question 514· Software and operating systems· WAEC
Software that manages the hardware and runs other programs is the
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Answer: D. operating system
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Question 515· Software and operating systems· JAMB
A command-line interface requires the user to
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Answer: C. type commands
Explanation and discussion
Question 516· Software and operating systems· WAEC
Device drivers are needed to
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Answer: B. let the operating system communicate with hardware devices
Explanation and discussion
Question 517· Software and operating systems· JAMB
Custom-written software is
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Answer: C. made specifically for a particular user's needs
Explanation and discussion
Question 518· Software and operating systems· WAEC
An advantage of a command-line interface over a GUI is that it
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Answer: C. uses fewer system resources and allows quick scripting
Explanation and discussion
Question 519· Software and operating systems· JAMB
A device driver is software that
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Answer: C. allows the operating system to communicate with hardware
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Question 520· Software and operating systems· JAMB
System software includes
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Answer: C. operating systems and utilities
Explanation and discussion

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JAMB and WAEC Computer Studies questions

An interpreter

In BASIC, after 10 LET X = 4 and 20 LET Y = X * 3 + 2, the value of Y is

What does this BASIC program print? 10 LET A = 5 20 LET B = A ^ 2 − 3 30 PRINT B

A logic error is one that

A translator that converts a whole high-level program into machine code before running it is a

Which of these is a low-level language?

Restarting a computer that is already on, without switching off the power, is a

Multitasking means

The software licence that allows use free of charge but keeps the code closed is

An operating system that serves many users at terminals by giving each a short slice of CPU time is

Utility software includes

Open-source software is software whose

A function of an operating system is

Software that manages the hardware and runs other programs is the

A command-line interface requires the user to

Device drivers are needed to

Custom-written software is

An advantage of a command-line interface over a GUI is that it

A device driver is software that

System software includes