WAEC Computer Science Past Questions & Answers - Page 70

346.

Charles Babbage was the first to?

A.

invent slide rule

B.

invent analytical engine

C.

make census machine

D.

make use of the punched card

Correct answer is B

No explanation has been provided for this answer.

347.

Which of these is a specialized port?  

A.

Firewall

B.

IRDA

C.

Parallel

D.

Serial

E.

USB

Correct answer is D

No explanation has been provided for this answer.

348.

In order to find and load a file that has been saved, you need to select the ... Command.

A.

close

B.

new

C.

open

D.

recycle

E.

save

Correct answer is C

No explanation has been provided for this answer.

349.

The ...... is found in the CPU of a computer.

A.

main memory

B.

modem

C.

mother board

D.

register

E.

zip drive

Correct answer is A

No explanation has been provided for this answer.

350.

The following actions are the effects of virus infection in a system except

A.

deletion of files

B.

slow operation

C.

hard disk failure

D.

display of unwanted messages

Correct answer is C

No explanation has been provided for this answer.