NECO Past Questions and Answers - Page 113

561.

Which of the following circuits is used as memory device in a computer? 

A.

Attenuator

B.

Comparator

C.

Flip-flop

D.

Modem

E.

Rectifier

Correct answer is C

No explanation has been provided for this answer.

562.

The symbolic representation of hard disk is?

A.

B:

B.

B:1

C.

C:

D.

C:l

E.

D:

Correct answer is B

No explanation has been provided for this answer.

563.

Notebook is an example of ..... Computer?

A.

macro

B.

mainframe

C.

micro

D.

mini

E.

super

Correct answer is C

No explanation has been provided for this answer.

564.

Lady Ada Lovelace improved upon the idea of?

A.

Babbage's analytical engine

B.

Babbage's difference engine

C.

Herman hollerinth's machine

D.

Leibnitz's calculator

E.

Pascal's arithmetic

Correct answer is A

No explanation has been provided for this answer.

565.

The common name for all input and output devices is?

A.

keyboard

B.

peripheral

C.

printer

D.

storage medium

E.

system unit

Correct answer is B

No explanation has been provided for this answer.