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CF1 Quiz 2 Review: Circuits and Hardware

Total questions: 93

Worksheet time: 52mins

Name
Class
Date
1.
The electrically-controlled mechanical switches used in room-sized computers were called ___
a)
mechanical relays
b)
transistors
c)
vacuum tubes
d)
dipole switches
2.
You can think of a relay like a water faucet. The control wire is like the ___
a)
spout
b)
flow of water
c)
faucet handle
d)
supply pipe
3.
What type of "bug" was pulled from the Harvard Mark II in September 1947?
a)
a grasshopper
b)
a butterfly
c)
a housefly
d)
a moth
4.
In 1904, English physicist John Ambrose Fleming developed the first ___
a)
mechanical relay
b)
vacuum tube
c)
transistor
d)
integrated circuit
5.
In 1906, what did Lee de Forest add to the Fleming valve?
a)
a glass envelope
b)
a third “control” electrode
c)
a mechanical relay
d)
a dipole switch
6.

Triode vacuum tubes replaced mechanical relays as____________

a)

electric switches representing two states.

b)

transistors.

c)

logic gates.

d)

control wires telling the computer what to do.

7.
The first large-scale use of vacuum tubes for computing was ___
a)
the Harvard Rhode's 1
b)
the Colossus Mark 1
c)
the Rhode's ENIAC
d)
the Colossus Rhode's 1
8.
ENIAC, the first general purpose, programmable, electronic computer, was completed in 1946 at ___
a)
Harvard University
b)
Bletchley Park, in the UK
c)
the University of Pennsylvania
d)
the University of Cambridge, in the UK
9.
In 1947, what radical new electronic switch was built by Bell Laboratory scientists?
a)
the vacuum tube
b)
the relay
c)
the transistor
d)
the integrated circuit
10.
A material that can sometimes conduct electricity and other times resist it is called ___
a)
a semiconductor
b)
a relay
c)
a diode
d)
a ferrous metal
11.
Unlike vacuum tubes made of fragile glass, transistors were known as ___
a)
solid-glass components
b)
solid-state components
c)
liquid-state components
d)
thermionic components
12.

The  _______was the first fully transistor-powered, commercial computer. 

a)

IBM 608

b)

ENIAC

c)

Colossus

d)

Jacquard Loom

13.
Completed in 1944, it was one of the largest electro-mechanical computers ever built.
a)
The US Air Force’s AN/FSQ-7 computer
b)
the Harvard Mark I
c)
ENIAC
d)
the IBM 608
14.
Colossus, the first programmable, electronic computer, contained ___
a)
16 megabytes of RAM
b)
160 electro-mechanical relays
c)
1,600 vacuum tubes
d)
16,000 transistors
15.
How was programming done on the Colossus Mark 1?
a)
by feeding in punched cards
b)
by plugging wires into plugboards
c)
by using a keyboard
d)
by pressing buttons and toggle switches
16.

True or False:

NOT gates can only have one input

a)

True

b)

False

17.

What type of logic gate is this table showing?

a)

AND

b)

OR

c)

NOT

18.

What type of logic gate is this table showing?

a)

AND

b)

OR

c)

NOT

19.

Which logic gate is this?

a)

AND

b)

OR

c)

NOT

20.

Which logic gate is this?

a)

AND

b)

OR

c)

NOT

21.

Which logic gate is this?

a)

AND

b)

NOT

c)

OR

22.

What will this gate's output be?

a)

0

b)

1

23.

What will this gate's output be?

a)

0

b)

1

24.

What will this gate's output be?

a)

0

b)

1

25.

What will this gate's output be?

a)

0

b)

1

26.

How many different combinations of 1 and 0 are possible with 2 bits?

a)

2

b)

4

c)

6

d)

8

27.

What is the Logic Expression for this circuit?

a)

Z = NOT (A AND B)

b)

Z = NOT (A OR B)

c)

Z = (NOT A) AND B

d)

Z = (NOT A) OR B

28.

True or False:

NOT gates output the opposite of the input

a)

True

b)

False

29.
What is the output of an OR gate if the inputs are 1 and 0?
a)
0
b)
1
c)
OFF
d)
2
30.
What is the output of an AND gate if the inputs are 1 and 0?
a)
ON
b)
2
c)
1
d)
0
31.
What is the output of a NOT gate if the inputs is 0?
a)
1
b)
0
c)
OFF
d)
2
32.
An OR gate has
a)
Two inputs and one output
b)
One input and one output
c)
One input and two outputs
d)
Two inputs and two outputs
33.
What gate is this table for?
a)
AND
b)
OR
c)
NOT
d)
NOR
34.
A truth table lists every possible combination of input and the resulting output
a)
True
b)
False
35.
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
36.

Write out the Boolean expression.

a)

Q=NOT(A AND B)

AND C

b)

Q=NOT(C AND B)

AND C

c)

Q=OR(A)

AND C

d)

Q=NOT(B)

OR Cd

37.

Write out the boolean expression.

a)

Q=(A AND B)

AND (C NOT D)

b)

Q=(A OR B)

NOT (B OR D)

c)

Q=(A NOT B) OR (C OR D)

d)

Q=(A OR B)

AND (C OR D)

38.
a)

1,1,1,0

b)

0,0,01

c)

1,0,0,1

d)

1,1,1,1

39.

How do OR and XOR logic gates differ?

a)

An OR gate always outputs 0 no matter what the inputs whereas an XOR outputs a 1 if one or more of the inputs is a 1

b)

There is no difference

c)

An OR gate outputs a 1 if one or more of the inputs is a 1 whilst an XOR outputs a 1 if only one (not both) of the inputs is a 1

40.

(a)   literally means “of two states.”

41.

(a)   is a self-taught English mathematician in the 1800s from which Boolean Algebra later got its name.

42.

In an XOR Gate if the input A is true and the input B is false the output will be _____.

a)

True

b)

False

43.

Which of the following is true?

a)

A Boolean data type has only two values: A and B

b)

A Boolean data type has only two values: yes and no

c)

A Boolean data type has only two values: true and false

d)

A Boolean data type has only two values: 1 and 0

44.

Which statement will require girls with brown hair to stand up?

a)

Girl OR Brown Hair

b)

NOT Girl AND Brown Hair

c)

Brown Hair AND Girl

45.

Which statement will return results for boys who aren't studying History?

a)

Boy

OR

Study History

b)

Boy

AND

Study History

c)

Boy

NOT

Study History

d)

Boy

AND NOT

Study History

46.

ALU means (a)   .

47.

(a)   is a circuit that takes two bits of inputs and is composed of an XOR gate and AND gate which can add two 1 bit binary.

48.

(a)   is a circuit that takes three bits of inputs and is composed of two half adder circuits and an OR gate which can add three 1 bit binary.

49.

(a)   is a circuit that takes 16 bits of inputs and is composed of one half adder and seven full adder connected in a circuit which can add two 8 bit binary.

50.

(a)   is an occurrence when the result of an addition is too large to be represented by the number of bits the computer can handle. This usually causes errors and unexpected behaviors on a computer.

51.

The physical elements that make up a computer or electronic system and everything else involved that is physically tangible is called what?

a)

Hardware

b)

Software

c)

Network

d)

Extension

52.

Which of the following are examples of hardware?

a)

Keyboard

b)

Plants vs Zombies

c)

Monitor

d)

Mouse

53.

Which of the following is not an example of hardware?

a)
b)
c)
d)
54.

It refers to the applications or programs you use while working on the computer.

a)

Peopleware

b)

Hardware

c)

Software

55.

What component helps draw air out of the computer case to prevent overheating?

a)

Case Fan

b)

Anti-Static Vacuum

c)

Antifreeze

d)

Aixiliary Fan

56.

The component that is used to display the computer image on.

a)

Video Card

b)

RAM

c)

Monitor

d)

Windows

57.

The device on which all of the major internal components are attached is called?

a)

Hard Disk

b)

ROM

c)

Microprocessor

d)

Motherboard

58.

This component processes data if you want to see or record images.

a)

Video Card

b)

Microprocessor

c)

Audio Card

d)

CPU

59.

This device allows a computer to maintain the time and date while unplugged or turned off

a)

Motherboard battery

b)

RAM

c)

CPU

d)

ROM

60.

What does RAM stand for?

a)

Read And Merge

b)

Read Always Memory

c)

Recent Accessed Memory

d)

Random Access Memory

61.

This storage device stores data permanently.

a)

RAM Chip

b)

ROM Chip

c)

Hard Disk Drive

d)

CPU

62.

This is a type of temporary computer memory, what is it called?

a)

ROM

b)

Cloud

c)

RAM

d)

SSD

63.

What does the heat-sink do?

a)

Warms up water

b)

Uses heat to get the CPU warmed up

c)

Cools off the user

d)

Cools off the CPU

64.

Without this unit, the computer has no electricity to run. . .

a)

Electric cables

b)

Power Supply

c)

IDE Cables

d)

Fan

65.

This device processes data so that you can hear or record sound

a)

Video Card

b)

RAM Chip

c)

Sound Card

d)

Speaker

66.

This allow you to increase your computer's performance by adding additional components

a)

Expansion slots

b)

IDE Cables

c)

Power Cables

d)

Additional slots

67.

This connector allows computers to transfer data to and from components outside of the computer

a)

USB Port

b)

External Port

c)

Memory Port

d)

Printer port

68.

People who play video games or do graphic/3D design often will buy a higher end version of this

a)

RAM

b)

Hard Drive

c)

CPU

d)

Graphics Card

69.

What is a SSD?

a)

Flash Memory

b)

Memory Stick

c)

Hard Drive

d)

Soft Drive

70.
What is this?
a)
Harddrive
b)
Tower
c)
Motherboard
d)
DVD
71.
What are these?
a)
Tower
b)
Motherboard
c)
Harddrive
d)
RAM memory
72.
What is this component called?
a)
Spinning Disk Drive
b)
Optical Disk Drive
c)
Hard Disk Drive
d)
Floppy Disk Drive
73.

CPU stands for

a)

Computer Processor Unit

b)

Central Processing Unit

c)

Collective Program URL

d)

Computer Programming Unit

74.

A computer hard drive

a)

stores the operating system, applications, and data files such a documents, pictures and music that your computer uses.

b)

is used to watch movies and videos

c)

is an operating system like Windows or Linux

d)

is not needed on a computer

75.

This component allows you to use CDs, DVDs, and Blu-ray discs to listen to music or watch a movie

a)

RAM

b)

Hard drive

c)

OS

d)

Optical drive

76.

Herman Hollerith developed a system of cards called

(a)  

77.

Identify the shaded area...

a)

A

b)

B

c)

not A

d)

not B

78.

Identify the shaded area...

a)

A

b)

B

c)

not A

d)

not B

79.

Identify the shaded area...

a)

A

b)

B

c)

not A

d)

not B

80.

Identify the shaded area...

a)

A

b)

B

c)

not A

d)

not B

81.

Identify the shaded area...

a)

A and B

b)

A or B

c)

not A and not B

d)

not A or not B

82.

Identify the shaded area...

a)

A and B

b)

A or B

c)

not A and not B

d)

not A or not B

83.

Identify the shaded area...

a)

A and B

b)

A or B

c)

not A and not B

d)

not A or not B

84.

Identify the shaded area...

a)

not A and B

b)

A and not B

c)

A or not B

d)

not A or B

85.

Identify the shaded area...

a)

not A and B

b)

A and not B

c)

A or not B

d)

not A or B

86.
What does the shaded region of the Venn diagram represent?
a)
P or S
b)

P xor S

c)

P and S and CD

d)

P and S and not CD

87.

Identify the shaded area...

a)

A and B

b)

not(A or B)

c)

not A or not B

d)

not(A and B)

88.

Which type of memory, denoted RAM, stores values only when the power is on?

a)

Regular Arbitrary Memory

b)

Rarely Accessible Memory

c)

Readily Accessed Memory

d)

Random Access Memory

89.

An OR gate, with the output fed back to one of the inputs, will ___

a)

permanently record a 1

b)

permanently record a 0

c)

temporarily record a 1

d)

temporarily record a 0

90.

An AND gate, with the output fed back to one of the inputs, will ___

a)

permanently record a 1

b)

permanently record a 0

c)

temporarily record a 1

d)

temporarily record a 0

91.

The action of putting data into memory is called ___

a)

reading

b)

writing

c)

inputting

d)

displaying

92.

The action of getting data out of memory is called ___

a)

grasping

b)

reviewing

c)

reading

d)

displaying

93.

A reference to a specific memory location is called ___

a)

an intersection

b)

an address

c)

a ZIP code

d)

a box number

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