WAEC Computer Science Past Questions & Answers - Page 88

436.

Fig 1 is a logic gate. Use it to answer the question below

In Fig. 1, X, Y, and Z respectively represent_______?

A.

Input, Output and Input signals

B.

Output, Output and Input signals

C.

Output, Input and Output Signals

D.

Input, Input and Output signals

Correct answer is D

No explanation has been provided for this answer.

437.

Fig 1 is a logic gate. Use it to answer the question below

Fig 1 represents_________?

A.

an AND gate

B.

an OR gate

C.

a NOT gate

D.

a NAND gate

Correct answer is B

No explanation has been provided for this answer.

438.

Which of the following signifies the correct association between a hardware component and its functions?

A.

Mouse to input

B.

Monitor to print

C.

CPU to storage

D.

Hard disk to processing

Correct answer is A

No explanation has been provided for this answer.

439.

Which of the following is not an output device?

A.

Plotters

B.

Speakers

C.

Projectors

D.

Webcams

Correct answer is D

No explanation has been provided for this answer.

440.

Which of the following items best describes the term hardcopy?

A.

Print out

B.

Written on a hardboard

C.

Information stored on a hard disk

D.

Amount of data

Correct answer is A

No explanation has been provided for this answer.