WAEC Computer Science Past Questions & Answers - Page 3

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12.

The keyboard key combination ALT + F4 in microsoft windows will

A.

close active programmes

B.

open a file

C.

restart the computer

D.

Select two stages of booting from the following list

Correct answer is A

No explanation has been provided for this answer.

13.

Deleted items in the computers are temporarily stored in the?

A.

memory unit

B.

processor

C.

recycle bin

D.

task manager

Correct answer is C

No explanation has been provided for this answer.

14.

The pictorial representation of an object or application in the computer is called?

A.

diagram

B.

graphic

C.

recycle

D.

image

Correct answer is C

No explanation has been provided for this answer.

15.

If A is in cell A1 and B is in Cell B1 of a worksheet in a spreadsheet application,write a formula to calculate

x= \(\frac{A^2 = B{^1/2}}{100}\)

A.

((A1^2)+(B1^(1/2)))/100

B.

((A1^2)+(B1^(1/2)))/100

C.

((A1^2+(B1^(1/2))/100

D.

((A1^2)+(B1^(1/2)))/100

Correct answer is A

No explanation has been provided for this answer.