Free Printable Semester 1 Revision in Computer Science

1.

Which of these are binary digits?

a)

0

b)

1

c)

2

d)

3

2.

Which of these are hexadecimal digits?

a)

F

b)

G

c)

6

d)

0

e)

H

3.

How many different values can be represented using 8 bits?

a)

128

b)

255

c)

256

d)

999

4.

What is the largest integer that can be represented using 7 bits?

a)

127

b)

128

c)

125

d)

999

5.

What is the binary equivalent of the hexadecimal digit E?

a)

1110

b)

1111

c)

0110

d)

0111

6.

Computers store all data using...

a)

Binary

b)

Hexadecimal

c)

Decimal

d)

Octal

7.

Hexadecimal is used because...

a)

It takes up less space

b)

It is easier for computers to process

c)

It is easier for people to read

d)

It is quicker to write data in

8.

What is the decimal equivalent of the binary number 00100111?

a)

39

b)

57

c)

228

d)

7

9.

What is the decimal equivalent of the hexadecimal number 4B?

a)

75

b)

180

c)

31

d)

255

10.

What is the binary equivalent of the decimal number 101?

a)

01100101

b)

01100011

c)

11110101

d)

00001101

11.

What is the largest 2-digit hexadecimal value?

a)

FF

b)

99

c)

9F

d)

F9

12.

What is the decimal equivalent of the hexadecimal digit B?

a)

10

b)

11

c)

12

d)

13

13.

What is the binary equivalent of the hexadecimal digit E?

a)

1110

b)

1111

c)

0110

d)

0111

14.

Hexadecimal is used because...

a)

It takes up less space

b)

It is easier for computers to process

c)

It is easier for people to read

d)

It is quicker to write data in

15.

What is the decimal equivalent of the binary number 00100111?

a)

39

b)

57

c)

228

d)

7

16.

What is the binary equivalent of the decimal number 101?

a)

01100101

b)

01100011

c)

11110101

d)

00001101

17.

What is the decimal equivalent of the hexadecimal number 4B?

a)

75

b)

180

c)

31

d)

255

18.

What is the decimal equivalent of the hexadecimal digit B?

a)

10

b)

11

c)

12

d)

13

19.

What is another name of the Base 10 number system?

a)

Binary

b)

Denary

c)

Hexadecimal

20.

Binary is base

a)

16

b)

10

c)

2

d)

32

21.

The brains of the computer.

a)

CPU

b)

PSU

c)

AGP

d)

ABC

22.

Random Access Memory

a)

MAR

b)

RAM

c)

Board

d)

Case

23.

Which one is an input device?

a)

printer

b)

mouse

c)

monitor

d)

speakers

24.

Which one is an output device?

a)

monitor

b)

speaker

c)

printer

d)

all of them

25.

Which one is NOT an output device?

a)

printer

b)

earphones

c)

keyboard

d)

speakers

26.

Which one is NOT an input device?

a)

scanner

b)

monitor

c)

mouse

d)

microphone

27.

What type of information gets lost if it isn't saved?

a)

CD ROM

b)

storage memory

c)

RAM

d)

flash drive

28.

The main circuit board, especially of a personal computer

a)

monitor

b)

motherboard

c)

RAM

d)

hardware

29.

A computer memory that acts as the main storage available to user for programs and data

a)

RAM

b)

URL

c)

ROM

d)

flash drive

30.

A display screen used to provide visual output from a computer

a)

Mouse

b)

Keyboard

c)

Monitor

d)

Speakers

31.

A device that can be slotted into a computer to allow the use of audio components for multimedia applications.

a)

Speakers

b)

Video Card

c)

Sound Card

d)

Mouse

32.

What are the 4 necessary components for a computer?

a)

input output programs hardware

b)

processing storage monitor keyboard

c)

input processing output storage

d)

flash drive, input, CPU, RAM

33.

A hand-operated device that allows control of the cursor on a computer screen.

a)

Mouse

b)

Keyboard

c)

Printer

d)

Hardware

34.

Which of these helps 'wake up' the computer?

a)

BIOS

b)

RAM

c)

Alarm Clock

d)

Hard Drive

35.

What kind of gate is this?

a)

AND

b)

NOT

c)

OR

d)

XOR

36.

What kind of gate is this?

a)

AND

b)

NAND

c)

OR

d)

XAND

37.

What kind of gate is this?

a)

OR

b)

XOR

c)

NOR

d)

AND

38.

What kind of gate is this?

a)

NOR

b)

NAND

c)

OR

d)

XOR

39.

What kind of gate is this?

a)

NAND

b)

AND

c)

NOR

d)

XAND

40.

What kind of gate does this Truth Table represent?

a)

OR

b)

AND

c)

XOR

d)

NOT

41.

What kind of gate does this Truth Table represent?

a)

AND

b)

NOT

c)

OR

d)

NAND

42.

What kind of gate does this Truth Table represent?

a)

AND

b)

OR

c)

NOT

d)

NOR

43.

What kind of gate does this Truth Table represent?

a)

NOR

b)

NOT

c)

OR

d)

XOR

44.

What kind of gate does this Truth Table represent?

a)

XOR

b)

OR

c)

NOT

d)

AND

45.

What kind of gate does this Truth Table represent?

a)

NAND

b)

AND

c)

XAND

d)

OR

46.

Which logic gate is this?

a)

AND

b)

NOR

c)

NOT

d)

OR

47.

Which logic gate is this?

a)

AND

b)

OR

c)

XOR

d)

NOT

48.

Which logic gate is this?

a)

XOR

b)

NOR

c)

NAND

d)

NOT

49.

Which logic gate is this?

a)

OR

b)

NOR

c)

XOR

d)

NXOR

50.

Which logic gate is this?

a)

NAND

b)

NOR

c)

XOR

d)

NXOR

51.

Which logic gate is this?

a)

NOR

b)

XOR

c)

NXOR

d)

NAND

52.

Which logic gate is this?

a)

NXOR

b)

NAND

c)

XOR

d)

NOR

53.

Which truth table is this?

a)

NOT

b)

AND

c)

OR

d)

NAND

54.

Which truth table is this?

a)

AND

b)

OR

c)

NOT

d)

NOR

55.

Which truth table is this?

a)

OR

b)

NOR

c)

XOR

d)

AND

56.

Which truth table is this?

a)

XOR

b)

NAND

c)

NOR

d)

NOT

57.

Which truth table is this?

a)

NAND

b)

AND

c)

OR

d)

NOR

58.

AND, OR, or NOT gate

a)

AND

b)

OR

c)

NOT

59.

AND, OR, or NOT gate

a)

AND

b)

OR

c)

NOT

60.

AND, OR, or NOT gate

a)

AND

b)

OR

c)

NOT

61.

AND Gate:
IF A and B are ON, C would light up?

a)

True

b)

False

62.

AND Gate:
If A is OFF but B is ON, C would light up?

a)

True

b)

False

63.

OR Gate:
IF A is ON and B is ON, C would light up?

a)

True

b)

False

64.

OR Gate:
If A is ON and B is ON, C would light up?

a)

True

b)

False

65.

NOT Gate:
If A is On, B would light up?

a)

True

b)

False

66.

NOT Gate:
If A is Off, B would light up?

a)

True

b)

False

67.

What is the system of notation that represents information using two states?

a)

binary

b)

decimal

c)

ASCII

d)

hexadecimal

68.

In computers, an “on” state, when electricity is flowing, represents ___

a)

false

b)

true

c)

zero

d)

down

69.

What is the branch of mathematics that deals exclusively with true and false values?

a)

vector algebra

b)

trigonometry

c)

Boolean algebra

d)

algebraic combinatorics

70.

There are three fundamental operations in Boolean Algebra: ___

a)

Addition, Subtraction and Multiplication

b)

NOT, AND, and OR

c)

IF, AND, and BUT

d)

IF, ELSE and ELSE IF

71.

For the AND Boolean operation, the output is only true if ___

a)

one input is true

b)

one input is false

c)

both inputs are true

d)

both inputs are false

72.

For the AND Boolean operation, if one of the inputs is false, the output is ___

a)

true

b)

false

c)

negated

d)

undetermined

73.

The only time this statement is false is if both inputs are false.

a)

a NOT gate

b)

an AND statement

c)

an OR statement

d)

an IF statement

74.

Which logic gate is commonly represented by a "triangle with a dot"?

a)

NOT

b)

AND

c)

OR

d)

XOR

75.

Which logic gate is commonly represented by a "Letter D" symbol?

a)

NOT

b)

AND

c)

OR

d)

XOR

76.

Which logic gate is commonly represented by a "spaceship" symbol?

a)

NOT

b)

AND

c)

OR

d)

XOR

77.

Which logic gate is represented by a "spaceship with a smile" ?

a)

NOT

b)

AND

c)

OR

d)

XOR

78.

What are the only two numbers you can use in binary?

a)

0 and 1

b)

1 and 2

c)

1, 2, 3, 4, 5, 6, 7, 8, 9, 10

d)

1, 2, 4, 8, 16

79.

Binary uses electrical signals

a)

True

b)

False

80.

An electrical circuit that is on, or lit up, is represented by a

a)

0

b)

1

81.

Which of these is NOT an example of binary?

a)

on or off

b)

true or false

c)

yes or no

d)

head, shoulders, knees, or toes

82.

Convert 65 to binary

a)

01100001

b)

00100001

c)

01000001

d)

00100101

83.

Convert 37 to binary

a)

00100101

b)

00100011

c)

00100111

d)

01000101

84.

Convert 00010001 to decimal

a)

17

b)

27

c)

37

d)

47

85.

What is 0101 + 1010?
HINT:
1 + 0 = 1
0 + 1 = 1
1 + 1 = 10

a)

1111

b)

2020

c)

146.6

d)

?

86.

How would you write the number 4 in binary code?

a)

0100

b)

0000

c)

0001

d)

0010

87.

What is 3 in binary?

a)

0100

b)

0001

c)

0101

d)

0011

88.

What is 12 in binary?

a)

0010

b)

1010

c)

1100

d)

1111

89.

The missing binary heading is what?
128, 64, ___ , 16, 8, 4, 2, 1

a)

32

b)

30

c)

60

d)

20

90.

1111 is the binary for?

a)

4

b)

7

c)

15

d)

20

91.

Information given to a computer by keyboard, mouse, internet, sensors, etc.

a)

Input

b)

Output

c)

Storage

d)

Processing

92.

Information sent OUT by a computer (on the screen, speakers, email, printer)

a)

Input

b)

Optput

c)

Storage

d)

Processing

93.

How a computer remembers information for later use

a)

Input

b)

Output

c)

Storage

d)

Processing

94.

When a video game tells me that I beat the level, or my phone buzzes because I am late for class this is:

a)

Input

b)

Output

c)

Storage

d)

Processing

95.

If a part of your computer is something touchable that exists (screen, speakers, processor, RAM, flash drive) then it is:

a)

Hardware

b)

Software

c)

Firmware

d)

Wetware

96.

Which is this? (DVD)

a)

Input

b)

Output

c)

Storage

d)

Computer

97.

Which is this? (Ipad)

a)

Input

b)

Output

c)

Storage

d)

Computer

98.

Which is this? (Floppy Disk)

a)

Input

b)

Output

c)

Storage

d)

Computer

99.

Which is this? (Hard Disk)

a)

Input

b)

Output

c)

Storage

d)

Computer

100.

Which is this? (Headphone)

a)

Input

b)

Output

c)

Storage

d)

Computer

101.

Which is this? (Joystick)

a)

Input

b)

Output

c)

Storage

d)

Computer

102.

Which is this? (Keyboard)

a)

Input

b)

Output

c)

Storage

d)

Computer

103.

Which is this? (Microphone)

a)

Input

b)

Output

c)

Storage

d)

Computer

104.

Which is this? (Microwave)

a)

Input

b)

Output

c)

Storage

d)

Computer

105.

Which is this? ()

a)

Input

b)

Output

c)

Storage

d)

Computer

106.

Which is this? (Monitor)

a)

Input

b)

Output

c)

Storage

d)

Computer

107.

Which is this? (USB Drive)

a)

Input

b)

Output

c)

Storage

d)

Computer

108.

Which is this? (Printer)

a)

Input

b)

Output

c)

Storage

d)

Computer

109.

Which is this? (Projector)

a)

Input

b)

Output

c)

Storage

d)

Computer

110.

Which is this? (Fitbit/Digital Watch)

a)

Input

b)

Output

c)

Storage

d)

Computer

111.

Which of these tells a computer what to to do or gives a computer information

a)

Input

b)

Output

c)

Storage

d)

Computer

112.

Which of these displays information or produces something in the real world?

a)

Input

b)

Output

c)

Storage

d)

Computer

113.

Which of these is NOT a Storage Device?

a)

USB Flash Drive

b)

CD-R

c)

Digital Camera

d)

Floppy Disk

114.

Choose the input devices.

a)

mouse, keyboard, headphones

b)

mouse, printer, headphones

c)

mouse, keyboard, speakers

d)

mouse, keyboard, smartboard

115.

Jordan is going to buy DVDs to record his basketball games. What is a DVD used for?

a)

Input

b)

Output

c)

Storage

Semester 1 Revision in Computer Science

Total questions: 115

Worksheet time: 1hrs 3mins

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