Unit 1: Computer Systems

1

What does ASCII stand for?

A American Standard Code for Information Interchange B Advanced System Code for Internet Interface C Automatic Standard Code for Information D American Software Code Interface

2

What is machine level data representation?

A Data stored in files B Data represented using binary form C Data shown on screen D Data printed on paper

3

Which coding system is an extension of ASCII and can represent characters from almost all languages in the world?

A BCD B EBCDIC C Unicode D Morse Code

4

At the most basic level, all data inside a computer is represented as:

A English letters B Binary numbers C Decimal numbers D Pictures

5

Which software controls startup of computer?

A Compiler B BIOS C Application software D Antivirus

6

Which software is used to perform specific tasks?

A System software B Application software C Firmware D BIOS

7

Programs like antivirus, disk cleanup, and file managers are known as:

A Application Software B Operating Systems C Games D Utility Software

8

What is the main software that manages all the hardware and software on a computer?

A Web Browser B Antivirus C MS Office D Operating System

9

The decimal number 10 is equal to which binary number?

A 1100 B 1111 C 1010 D 1001

10

Which type of software is Windows?

A Application software B Utility software C System software D Firmware

11

The hexadecimal number system uses 16 symbols, which are 0-9 and:

A A-G B X, Y, Z C A-F D Special symbols

12

Which number system is most easily understood by humans?

A Decimal B Binary C Hexadecimal D Octal

13

Which OS provides GUI?

A DOS B Windows C Assembly D Machine language

14

Unicode was developed to overcome limitations of?

A Binary B Decimal C ASCII D Hexadecimal

15

Which software is necessary to run applications?

A Operating system B Utility software C Antivirus D Editor

16

Which software removes viruses?

A Application software B Utility software C System software D Programming software

17

Which number system uses base 10?

A Binary B Octal C Decimal D Hexadecimal

18

ASCII code uses how many bits?

A 5 B 6 C 7 D 16

19

What is the base of the binary number system?

A 10 B 2 C 8 D 16

20

Main function of an operating system is to?

A Create documents B Manage hardware and software C Browse internet D Edit images

21

Which is an example of system software?

A Excel B PowerPoint C Windows D Photoshop

22

Which code is limited to English characters?

A Unicode B ASCII C UTF-8 D UTF-16

23

Which unit is the smallest unit of data in a computer?

A Byte B Bit C Nibble D Word

24

Machine language is written in?

A English B Symbols C Binary D Decimal

25

Which of the following is an operating system?

A MS Word B Windows C Chrome D Excel