WAEC Past Questions and Answers - Page 2518

12,586.

Which of the following memory types are nonvolatile?

I. PROM II. SRAM II. EEPROM IV. DRAM

A.

I and lll only

B.

I and IV only

C.

Il and ll only

D.

IIl and IV only

Correct answer is A

No explanation has been provided for this answer.

12,587.

A data bus that is capable of transferring 8 bytes of data at once can be rated as? 

A.

a 16-bit data bus

B.

a 32-bit data bus

C.

a 64-bit data bus

D.

an 8- bit data bus

Correct answer is C

No explanation has been provided for this answer.

12,588.

In Figure 1, the value of Z when X = 1 and Y=0 is? 

A.

0

B.

1

C.

10

D.

11

Correct answer is B

No explanation has been provided for this answer.

12,589.

which of the following logic operations would select a record when at least one condition is satisfied?

A.

AND

B.

NOR

C.

NOT

D.

OR

Correct answer is C

No explanation has been provided for this answer.

12,590.

Handwritten letters, typeset documents or printout Characters can be read into the computer by?

A.

Barcode Reader

B.

Magnetic Ink Character Recognition

C.

Optical Character Recognition

D.

Optical Mark Reader

Correct answer is D

No explanation has been provided for this answer.