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Computing Revision

Total questions: 60

Worksheet time: 41mins

Name
Class
Date
1.
What is the purpose of the CPU?
a)
To process all the data and instructions.
b)
To turn the computer on.
c)
To create PowerPoint presentations.
d)
To provide power to the computer.
2.
What is the main function of the CPU?
a)
To carry out processing of the data.
b)
To help with playing games.
c)
To fetch instructions from memory, decode them and execute the instructions.
d)
To heat up the computer.
3.
What is the job of the control unit?
a)
It carries out calculations
b)
It stores information.
c)
It does nothing.
d)
It controls the input and output of data to make sure that it gets to the right place.
4.
What are registers used for?
a)
To check that students are in school.
b)
To temporarily hold bits of data needed by the CPU.
c)
To make sure that the CPU runs properly.
d)
To make the CPU faster.
5.
What happens at the Decode step of the fetch-decode-execute cycle?
a)
The CPU makes sense of the instructions.
b)
The CPU fetches the information from RAM.
c)
The instructions are executed.
6.
What does CPU stand for?
a)
Control Processing Unit
b)
Central Processing Unit
c)
Central Power Unit
d)
Center Power Unit
7.
What is the program counters job?
a)
To count the programs
b)
It contains the memory address of the next instruction to be loaded
c)
It stores instructions
d)
It carries out the calculations
8.
Which of the following is an example of 'main memory'.
a)
Hard Drive
b)
USB Drive
c)
RAM
d)
ROM
9.
Which of the following CPU's will have a better better performance:
A: 3 GHz Quad Core CPU
B: 3 GHz Duel Core CPU 
a)
A
b)
B
10.
How does clock speed affect computer performance?
a)
The higher the clock speed the slower the computer will run.
b)
It improves the amount you can store on the computer.
c)
The higher the clock speed the better the performance.
d)
It will make loading program slower
11.
What is a bus?
a)
A circuit that connect one part of CPU to other components.
b)
A type of long term memory
c)
A type of permanent memory
d)
A method of transport
12.
What is cache memory?
a)
A very large, temporary memory
b)
A very small but expensive memory
c)
It is used to store data and programs permanently
d)
It is a type of payment
13.
How can a bigger cache improve CPU performance?
a)
By being able to carry out more calculations
b)
By being able to store more recently used instruction inside the CPU for quicker access times
c)
By being able to 
14.
Which two main components make up a CPU
a)
Control unit and Processing unit
b)
Control unit and RAM
c)
Control unit and Arithmetic Logic unit 
d)
Flash storage and Arithmetic Logic unit 
15.

A component of the CPU that performs arithmetic, as well as comparison and logic operations, is the:

a)

ALU

b)

CMOS

c)

RAM

d)

Control unit

16.

Data is distributed throughout the computer system in the following order

a)

Output, Processing, Input, Memory, Storage

b)

Memory, Input, Processing, Storage

c)

Input, Processing, Memory, Storage, Output

d)

None of the above

17.

Which Register would be first to be accessed during the Fetch- Decode- Execute cycle?

a)

PC

b)

MAR

c)

MDR

d)

CIR

18.
The fetch execute cycle runs continuously when the computer is turned on.
a)
True
b)
False
19.

What is the name of the unit in CPU that controls and coordinates all parts of the computer system?

a)

Arithmetic unit

b)

Logic unit

c)

Control unit

d)

Registers

20.

What is the name of the unit that store instructions and data during the Fetch - Execute Cycle?

a)

Control unit

b)

Registers

c)

Arithmetic unit

d)

Logic unit

21.

Used to transmit data between areas of the processor.

a)

Data bus

b)

Address bus

c)

Control bus

22.
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
23.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100
24.

Which of these are the correct place values for binary?

a)

128,64,32,16,8,4,2,1

b)

128, 68,34,12,6,4,2,1

c)

1,0

d)

0,1

25.
A bit is 
a)
a numerical label assigned to each device.
b)
the smallest unit of data in a computer.
c)
a keyboarding term for typing.
d)
is a numeral system made up of 16 symbols.
26.
Convert 65 to binary
a)
01100001
b)
00100001
c)
01000001
d)
00100101
27.
Convert 37 to binary
a)
00100101
b)
00100011
c)
00100111
d)
01000101
28.
Convert 196 to binary
a)
11000110
b)
11100100
c)
11000100
d)
11010100
29.
What logic gate is this?
a)
AND
b)
OR 
c)
NOT
d)
TO
30.
What logic gate is this?
a)
AND 
b)
OR 
c)
NOT 
d)
THE
31.
What logic gate is this?
a)
OR
b)
NOT
c)
AND 
d)
THE
32.

The motor (M) of the washing machine turns on when the right temperature (T=1), the right water level (W=1) and the door of the machine is closed (D=1).


Which one is the correct Boolean Expression?

a)

M=(T.W).DM=\left(T.W\right).D

b)

M=(T+W).DM=\left(T+W\right).D

c)

M= (T+W)+DM=\ \left(T+W\right)+D

d)

M=(T.W)+DM=\left(T.W\right)+D

33.

Which is the correct logic circuit?

a)
b)
c)
d)
34.
What is a database?
a)
A piece of software to do calculations
b)
A device to load information onto the computer.
c)
A structured collection of information
d)
A calculator
35.
Which of the following describes a relational database?
a)
Access
b)
A database that has a table
c)
There are two or more tables that are linked using the primary keys
d)
There are more than one table that have duplicate data
36.
A method for checking data entered e.g. Proof Reading or Double Entry.
a)
Verification
b)
Filter
c)
Data Types
d)
Query
37.
A rule to make sure that only reasonable and sensible data is entered.
a)
Filter
b)
Query
c)
Validation
d)
Verification
38.

A unique identifier used in creating a table that assures there will be no duplicate data.

a)

Primary Key

b)

Query

c)

Data Type

39.
What is the most durable?
a)
Magnetic Tape
b)
Solid State Drive
c)
Hard Drive
d)
CD
40.
Secondary storage is usually smaller than memory
a)
True
b)
False
41.
Which is the Optical Storage
a)
DVD
b)
HDD
c)
SSD
d)
USB
42.
A ______ is the main storage device in your computer.
a)
CPU
b)
Hard drive
c)
Motherboard
d)
CD-Rom
43.

Which of these are reasons for computer systems requiring secondary storage? (Tick all)

a)

Secondary storage improves system performance

b)

Used to back up data stored in main memory/primary storage.

c)

Stores programs/data and other files that would otherwise be lost when the power is switched off/RAM is volatile/cannot store data permanently.

d)

Need for larger storage capacity (than what RAM and ROM can provide).

e)

Its required for Virtual Networks

44.

Which of these define what secondary storage is?

a)

Non-volatile storage / devices that are not directly accessible by the CPU

b)

Any non-volatile storage

c)

All memory technologies that use magnetism.

d)

Any memory technology using laser light

e)

A USB device

45.
_________________ storage is the computers's short term memory.
a)
Primary
b)
Secondary
c)
University
d)
Elementary
46.
RAM stands for __________________________.
a)
Rainy Access Memory
b)
Renewal Access Memory
c)
Random Access Memory
d)
Revival Access memory
47.
RAM keeps data for the CPU that it needs when procesing.
a)
True 
b)
False
48.
Which of the following is non-volatile?
a)
A. RAM
b)
B. ROM
c)
C. Cache
d)
D. Harddisk
49.
What does ROM stand for?
a)
Random Only Memory
b)
Random Only Memory
c)
Rapid Only Machine
d)
Read Only Memory
50.

BIOS is an example of

a)

RAM

b)

ROM

51.

An Operating System is a program that helps the user to communicate between the software and ___________

a)

Memory

b)

Hardware

52.

The Operating System is a program that allows different ____________ and various pieces of hardware to _________with each other.

a)

application, software

b)

software , application

c)

application , communicate

d)

software, communicate

53.
________________programs that control or maintain the operations of the computer and its devices.
a)
Software
b)
System Software
c)
Application software
d)
Utility program
54.
_________________are programs that designed to help users to be more productive with their personal tasks.
a)
Software
b)
System Software
c)
Application software
d)
Utility program
55.

What does LAN stand for?

a)

Logical Analogue Network

b)

Laser Assisted Network

c)

Local Area Network

56.

Which of these statements is TRUE about a LAN?

a)

A LAN connects computers in a small area such as an office

b)

A modem is needed to connect a computer to a LAN

c)

A LAN consists of only one computer

57.

is a wireless local area network

a)

WLAN

b)

LAN

c)

WAN

58.
Which of these is NOT an advantage of networks?
a)
Sharing peripheral devices such as printers and scanners
b)
Possible to communicate globally
c)
Can protect against viruses
d)
PCs can be backed up and updated by one central PC
59.

What is WAN used for?

a)

Connects small areas

b)

Used for access point name

c)

Used for connecting computers that spans a wide geographical area

60.

Which network connection is faster and more relaiable?

a)

Wired

b)

Wireless

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