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Computer Science Quiz

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Conversion of binary number 1010101000010111 to hexadecimal number is?

a)

AA17(16)

b)

A17A(16)

c)

1A7A(16)

d)

17AA(16)

2.

Who is credited with the idea of using punch cards to control patterns in a weaving machine?

a)

Jacquard

b)

Turing

c)

Babbage

d)

Hollerith

3.

Storage on PC allows you to store files until something erases it, but memory loses its contents whenever its _____ is lost?

a)

Power

b)

Speed

c)

Size

d)

Control

4.

The central processor of a modern digital computer consists of?

a)

Control unit and primary memory

b)

Control unit and ALU

c)

CPU and memory

d)

ALU and hard drive

5.

A temporary storage area, attached to the CPU, for I/O operations is a:

a)

Buffer

b)

Register

c)

Cache

d)

RAM

6.

The person contributing the idea of the stored program was?

a)

John von Neumann

b)

Charles Babbage

c)

Alan Turing

d)

Bill Gates

7.

Which of the following is not a part of the CPU program unit?

a)

Control unit

b)

Arithmetic Logic Unit

c)

Register

d)

Hard drive

8.

Transistorized computer circuits were introduced in the?

a)

Second generation

b)

First generation

c)

Third generation

d)

Fourth generation

9.

Those microcomputers which have the same operating characteristics as the IBM microcomputers are called?

a)

IBM clones

b)

PCs

c)

Workstations

d)

Mainframes

10.

The invention of the slide rule is attributed to?

a)

Oughtred

b)

Turing

c)

Babbage

d)

Pascal

11.

Different components on the motherboard of a PC processor unit are linked together by sets of parallel electrical conducting lines. What are these lines called?

a)

Buses

b)

Wires

c)

Circuits

d)

Chips

12.

Microelectronics is the technology of?

a)

Chips

b)

CPUs

c)

Transistors

d)

Displays

13.

The monitor of a computer is connected to it by a?

a)

Cable

b)

Wireless connection

c)

Bluetooth

d)

Fiber optic

14.

A single bus structure is primarily found in?

a)

Mini- and micro-computers

b)

Mainframes

c)

Supercomputers

d)

Embedded systems

15.

Everything a computer does is controlled by its?

a)

CPU

b)

RAM

c)

Hard drive

d)

Power supply

16.

A collection of eight bits is called?

a)

Byte

b)

Word

c)

Nibble

d)

Kilobyte

17.

Each model of a computer has a unique?

a)

Machine language

b)

Operating system

c)

File system

d)

Processor

18.

The most common input device used today is?

a)

Keyboard

b)

Mouse

c)

Touchscreen

d)

Microphone

19.

The barcode which is used on all types of items, is read by a scanning device directly into the computer. What is the name of this scanning device?

a)

Laser scanner

b)

Barcode reader

c)

Camera

d)

Optical scanner

20.

The equipment with which the computer talks to its users is called a?

a)

Peripheral

b)

Monitor

c)

Keyboard

d)

Speaker