JAMB Computer Science Past Questions & Answers - Page 10

46.

what is the first computing machine invented ?

A.

slide rule

B.

Pascal calculator

C.

Napier bones

D.

Abacus

Correct answer is D

The Abacus was invented between 2700 and 2300 BC, it is the first computing machine known to mankind

47.

Which of the following is NOT a high-level programming language?

A.

Assembly language

B.

C++

C.

Python

D.

Java

Correct answer is A

Assembly language is a low-level programming language that is specific to a particular computer architecture. It is more difficult to learn and use than high-level programming languages, but it offers more control over the hardware

48.

Which of the following is not an application software

A.

MS - Word

B.

CorelDraw

C.

Linux

D.

MacWrite

Correct answer is C

Linux is not an application software. It is an example of system software

49.

Analog, digital and hybrid computers are classification of computers based on

A.

the type of data-handling techniques

B.

the purpose

C.

the size

D.

the functionality

Correct answer is A

Computers are classified into analog, digital, and hybrid based on the type of data-handling techniques they use. Analog computers work with continuous data and are used for tasks such as measuring and controlling voltages. Digital computers work with discrete data and are used for tasks such as word processing and spreadsheet calculations. Hybrid computers combine the features of both analog and digital computers

50.

Which of the following is the standard keyboard layout ?

A.

Dvorak

B.

QWERTY

C.

AZERTY

D.

ABCD

Correct answer is B

The standard keyboard layout is QWERTY. This layout was patented by Christopher Sholes who invented the typewriter and later adapted to the world's first computers