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Worksheets

Dosik

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

The brain of any computer system is

a)

Control unit

b)

CPU

c)

Assembler

d)

CPU cycle

2.

A memory bus is mainly used for communication between

a)

Second generation

b)

processor

c)

Plotter

d)

memory

3.

What difference does the 5th generation computer have from other generation computers?

a)

Control unit

b)

Abacus

c)

Technological advancement

d)

Computer program

4.

The transistorized computer circuits were introduced in the

a)

Second generation

b)

First generation

c)

generation

d)

Digital generation

5.

The tracks on a disk which can be accessed without repositioning the R/W heads is

a)

Konys

b)

Cylinder

c)

Assembler

6.

Conversion of an octal number 256 to binary number is

a)

11111010

b)

10101111

c)

10101010

d)

10101110

7.

Which of the following is the 1's complement of 10?

a)

01

b)

02

c)

04

d)

03

8.

The arranging of data in a logical sequence is called:

a)

Assembler

b)

sorting

c)

Device

d)

Database

9.

Which part interprets program instructions and initiate control operations.

a)

Arifmetic logic unit

b)

ALU

c)

CPU

d)

Control unit

10.

Continuous line drawing is produced using

a)

Plotters

b)

Usb-Flash

c)

Printers

d)

Skanners

11.

The binary system uses powers of

a)

3

b)

5

c)

2

d)

4

12.

Who is the creator of the PASCAL language?

a)

Charles Babbage

b)

Blaise Pascal

c)

Niklaus Wirth

d)

Charles Pascal

13.

A computer program that converts assembly language to machine language is

a)

Pascal

b)

Assembler

c)

Python

d)

Data science

14.

The unit of a computer system that executes program, communicates with and often controls the operation of other subsystems of the computer is known as

a)

Control unit

b)

Register

c)

CPU

d)

ALU

15.

The time required for the fetching and execution of one simple machine instruction is

a)

CPU cycle

b)

Control unit

c)

CPU science

d)

ALU

16.

Which printer uses a combination of laser-beam & electro photographic techniques.

a)

Laser plotters

b)

Laser scanners

c)

Laser speakers

d)

Laser printers

17.

Binary numbers need more places for counting because

a)

Binary base is big

b)

Binary base is small

c)

Binary science is small

d)

Binary science is big

18.

A notation used to express clearly on algorithm is known as

a)

Algorithmic language

b)

Arifmetic language

c)

ALU

19.

Which computer has been designed to be as compact as possible?

a)

Micro computer

b)

Computer

c)

Plotter

d)

System unit

20.

A central computer surrounded by one or more satellite computers is called a

a)

network star

b)

Star network

c)

Network

21.

Which of the following is still useful for adding numbers?

a)

Central processing unit

b)

Arifmegic logic unit

c)

Control unit

d)

Abacus

22.

Which of the following input/output devices is not associated with personal computers?

a)

Cards

b)

Buses and cards

c)

punched cards

d)

Arifmetic cards

23.

A general purpose single-user microcomputer designed to be operated by one person at a time is

a)

Data science

b)

PC

c)

ASCCI

24.

First generation computers are characterized by

a)

Vacuum tubes

b)

Algorithmic drum

c)

magnetic drum

d)

Arifmetic tubes

25.

ASCII stands for

a)

American standard code for information into

b)

American stand code for information into

c)

American standard code for information interchange

26.

What is the number of bit patterns provided by a 7-bit code?

a)

128

b)

127

c)

129

d)

126

27.

Which device of computer operation dispenses with the use of the keyboard?

a)

Printer

b)

Mouse

c)

Webcam

d)

Monitor

28.

Third generation computers

a)

HP

b)

Predator

c)

None of these

d)

Asus nitro5

29.

Which output device is used for translating information from a computer into pictorial form on paper.

a)

Printer

b)

Scanner

c)

Plotter

30.

The third generation of computers covers the period:

a)

1955-1960

b)

1960-1965

c)

1970-1975

d)

1965-1970

31.

The list of coded instructions is called

a)

Computer device

b)

Computer program

c)

Computer essentials

d)

Computer system

32.

Which of the following memories must be refreshed many times per second?

a)

Dynamic RAM

b)

Dynamic ROM

c)

Dynamic RAM and ROM

d)

Ram and Rom

33.

The first mechanical calculating machine was made by

a)

Blaise Pascal

b)

Charles Babbage

c)

Niklaus Wirth

d)

Charles Pascal

34.

The computer industry uses prefixes of Greek origin to measure large amounts of data. Which term describes 1024 bytes.

a)

Terabyte

b)

Byte

c)

Kilobyte

d)

Megabyte

35.

Multiplication of 1112 by 1012 is

a)

101011

b)

100101

c)

100010

d)

100011

36.

The OR, XOR & AND functions can be performed by _____ of the computer in a CPU.

a)

Control unit

b)

Register

c)

ALU

d)

Main memory

37.

Conversion of an octal number 20 to its binary number is

a)

10000

b)

11000

c)

10100

d)

11100

38.

Which company is the biggest player in the microprocessor industry?

a)

Lenux

b)

Intel

c)

hp

d)

Windows

39.

Which of the following can be output by a computer?

a)

Monitor

b)

Printer

c)

All of these

40.

Who is called the "grandfather" of the computer?

a)

Blaise Pascal

b)

Charles Babbage

c)

Charles Pascal

d)

Niklaus Wirth