WAEC Computer Science Past Questions & Answers - Page 40

196.

The system unit houses the following components except?

A.

plotter

B.

motherboard

C.

floppy disk

D.

central processing unit

Correct answer is A

No explanation has been provided for this answer.

197.

The pre-computing age device which made use of beads and frames is? 

A.

Abacus

B.

Napier's bone

C.

Liebnitz multiplier

D.

Burrough's counting device

Correct answer is A

No explanation has been provided for this answer.

198.

Which of the following output devices was common among the computing devices of the 19th century?

A.

Monitor

B.

Plotter

C.

Printer

D.

Speaker

Correct answer is B

No explanation has been provided for this answer.

199.

Data can be defined as? 

A.

raw facts

B.

mixed facts

C.

facts on prints

D.

processed facts

Correct answer is A

No explanation has been provided for this answer.

200.

Opening an already existing sequential file in output (O) mode will lead to?

A.

buffer overflow

B.

deletion of the current content of the file

C.

duplication of the current content of the file

D.

addition of new data to the content of the file

Correct answer is C

No explanation has been provided for this answer.