JAMB Computer Science Past Questions & Answers - Page 2

6.

Translating the problem statement into a series of sequential steps describing what the program must do is known as

A.

coding

B.

creating the algorithm

C.

debugging

D.

writing documentation

Correct answer is B

Algorithm design is the process of listing all the instructions which are to be performed by the computer at different stages

7.

The closest computer language to human is ?

A.

High level language

B.

Low level language

C.

Machine language

D.

Assembly language

Correct answer is A

High level languages give formats close to English language and the purpose of developing high level language is to enable people to write programs easily and in their own native language environment

8.

If the control unit controls other units of the CPU, which unit stores instructions,data and intermediate results

A.

Memory unit

B.

Arithmetic section

C.

Control unit

D.

Logic section

Correct answer is A

The memory unit of the CPU stores instructions, data, and intermediate results. The control unit controls the operation of the CPU and hence the computer. The arithmetic section performs arithmetic operations like addition, subtraction, multiplication, and division. The logic section performs logical operations like comparison of values

9.

Computers that are small and low cost are referred to as ?

A.

mini computers

B.

small computers

C.

tablet computers

D.

micro computers

Correct answer is D

Micro computers are small and low cost digital computers, which usually consists of a micro-processor, a storage unit, an input channel and an output channel

10.

In BASIC, REM shows a statement to be

A.

executable statement

B.

un-executable statement

C.

comment

D.

output

Correct answer is C

REM is an abbreviation for remark and it's the way you add comments to your code in BASIC