JAMB Computer Studies questions

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

All topics Algorithms and flowcharts · 18 Application packages · 21 Computer hardware and the CPU · 20 Computer networks and the internet · 22 Computer security, ethics and safety · 18 Data processing and information · 18 Evolution of computing · 19 Input and output devices · 18 Logic gates and Boolean algebra · 18 Memory and storage devices · 21 Number systems and data representation · 23 Programming languages and BASIC · 21 Software and operating systems · 20

Question 141· Input and output devices· JAMB
A digitiser (graphics tablet) is used for
Explanation and discussion
Question 142· Input and output devices· JAMB
A biometric device identifies people by
Explanation and discussion
Question 143· Input and output devices· JAMB
A multimedia projector is
Explanation and discussion
Question 144· Input and output devices· JAMB
Magnetic ink character recognition (MICR) is used mainly in
Explanation and discussion
Question 145· Input and output devices· JAMB
A joystick is mainly used for
Explanation and discussion
Question 146· Input and output devices· JAMB
The device that reads pencil marks on objective answer sheets is the
Explanation and discussion
Question 147· Input and output devices· JAMB
A laser printer produces print using
Explanation and discussion
Question 148· Input and output devices· JAMB
A barcode reader is used mainly in
Explanation and discussion
Question 149· Input and output devices· JAMB
A webcam is
Explanation and discussion
Question 150· Input and output devices· JAMB
A dot-matrix printer is an
Explanation and discussion
Question 151· Input and output devices· JAMB
Which of these is an input device?
Explanation and discussion
Question 152· Input and output devices· JAMB
A scanner with software that turns printed text into editable text uses
Explanation and discussion
Question 153· Input and output devices· JAMB
Which device converts printed images into digital form?
Explanation and discussion
Question 154· Input and output devices· JAMB
Optical mark recognition (OMR) is used to
Explanation and discussion
Question 155· Logic gates and Boolean algebra· JAMB
The output of a NAND gate with inputs 1 and 1 is
Explanation and discussion
Question 156· Logic gates and Boolean algebra· JAMB
A three-input truth table has
Explanation and discussion
Question 157· Logic gates and Boolean algebra· JAMB
An AND gate with inputs A = 1 and B = 0 gives
Explanation and discussion
Question 158· Logic gates and Boolean algebra· JAMB
In Boolean algebra, A · 0 equals
Explanation and discussion
Question 159· Logic gates and Boolean algebra· JAMB
A truth table for a gate with 3 inputs has how many rows?
Explanation and discussion
Question 160· Logic gates and Boolean algebra· JAMB
An OR gate with inputs A = 0 and B = 1 gives an output of
Explanation and discussion

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JAMB Computer Studies questions

A digitiser (graphics tablet) is used for

A biometric device identifies people by

A multimedia projector is

Magnetic ink character recognition (MICR) is used mainly in

A joystick is mainly used for

The device that reads pencil marks on objective answer sheets is the

A laser printer produces print using

A barcode reader is used mainly in

A webcam is

A dot-matrix printer is an

Which of these is an input device?

A scanner with software that turns printed text into editable text uses

Which device converts printed images into digital form?

Optical mark recognition (OMR) is used to

The output of a NAND gate with inputs 1 and 1 is

A three-input truth table has

An AND gate with inputs A = 1 and B = 0 gives

In Boolean algebra, A · 0 equals

A truth table for a gate with 3 inputs has how many rows?

An OR gate with inputs A = 0 and B = 1 gives an output of