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1. The smallest information element in a digital system is

digit

byte

bit

electron

2. The computer language system which uses the base 8 is called

hexadecimal

octal

binary

decimal

3. In a negative logic system

binary 1 and binary 0 are equal levels above and below zero

binary 1 is positive, binary 0 is negative

binary 1 is a high level, binary 0 is a low level

binary 1 is a low level, binary 0 is a high level

4. Aircraft data in analog form, before being processed by a computer must be passed through a

analog to digital converter (A to D)

digital to analog converter (D to A)

EAROM

EPROM

5. A basic digital computer consists of: 1. input peripherals 2. central processing unit 3. inertial unit 4. memory 5. auto brightness control 6. output peripherals

1, 2, 4 and 6

1, 2, 3, 4 and 6

1, 4, 6 only

2, 3, 4 and 6

6. The purpose of the Arithmetic Logic Unit within the Central Processing Unit is to

perform all clock functions based on the computer clock frequency (clock time)

perform calculations in the binary number system

act as a temporary store for information being processed

perform calculations in the binary, octal or hexadecimal system

7. In a digital computer binary 1 is represented by +5 volts and Binary 0 by earth. This is an example of

bipolar logic

analog system

negative logic

positive logic

8. The two types of binary logic are

variable and reversible

variable and negative

positive and negative

positive and reversible

9. In computer terminology an input peripheral device would be

a hard disk

a floppy disk

a screen display unit

a keyboard

10. Within the Central Processing Unit, the temporary stores and accumulator which handle the data during processing are called

Control Unit

BIOS

Arithmetic Logic Unit (ALU)

Shift Registers

11. The computer language in which calculations are carried out and information is stored in memory is

octal

hexadecimal

binary

decimal

12. Examples of input peripheral devices are: 1. mouse 2. modem 3. printer 4. screen display unit 5. keyboard

1, 2 and 5

1 and 5

2, 3, 4 and 5

1, 2, 3

13. In computer terminology an output peripheral device would be

a hard disk

a keyboard

a screen display unit

a floppy disk

14. In computer terminology “software” refers to

the memory system floppy disks, hard disks, etc

the programme of instructions

the BIOS

the RAM and ROM capacity

15. Convert the decimal number 7 to its binary equivalent

100

1110

1101

111

16. In computer terminology “hardware” refers to

the digital computer components, keyboard, monitor, CPU, etc

the RAM capacity

the permanent memory system and its capacity

the programme of instructions

17. Convert binary 1110 to its decimal equivalent

13

15

14

16

18. The number system which uses the numbers 0 to 9 followed by the letters A to F is

hexadecimal

numeric alpha

octal

alpha numeric

19. Memory capacity in a digital computer is expressed in

Bytes (Mbytes, Gbytes)

RAM capacity

Bits (Mbits, Gbits)

ROM capacity

20. In computer terminology a memory which loses its data when power is removed is called

non-permanent

non-retentive

volatile

non-volatile

21. A group of binary digits handled as a group is referred to as a

byte

giga bit

mega bit

bits

22. The Central Processing Unit (CPU) consists of: 1. input device 2. output device 3. Arithmetic Logic Unit (ALU) 4. Shift Registers 5. Control Unit 6. Hard disk

1, 2, 3 and 5

3, 4 and 5

1, 2, 5, and 6

3, 4, and 6

23. The permanent memory of a digital computer usually takes the form of

Central Processing Unit

floppy or hard disks whose capacity is measured in mega or gigabytes

Integrated circuits rated in megabytes

shift registers whose capacity is rated in mega or gigabytes

24. The computer language system which uses the base 16 is known as

hexadecimal

hectadecimal

septagesimal

octal

25. In computer terminology a memory which retains its data when power is removed is called:

RAM

non-volatile

ROM

volatile

Question Bank

Questions for BASIC COMPUTERS