WAEC Past Questions and Answers - Page 2560

12,796.

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.

12,797.

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.

12,798.

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.

12,799.

A student mistakenly pressed the F5 key on keyboard while browsing on the internet. This will lead to?

A.

opening of a new tab

B.

closing of the active window

C.

Closing of all windows

D.

reloading of the active window

Correct answer is C

No explanation has been provided for this answer.

12,800.

Arrange in hierarchical order by date the following inventions:

I. - Census machine; Il. - Abacus; lll. - Slide rule; IV.- Difference engine.

A.

I, lI, IlI and IV

B.

I, IlI, II and IV

C.

I, II, IV and llI

D.

I, IV, IlI and l

Correct answer is A

No explanation has been provided for this answer.