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Computer Systems Revision

Total questions: 107

Worksheet time: 1hrs 4mins

Name
Class
Date
1.
What does CPU stand for?
a)
Critical Processing Unit
b)
Core Processing Unit
c)
Common Processing Unit
d)
Central Processing Unit
2.
What is Software?
a)
User Applications and Operating Systems
b)
Physicals parts of a Computer
3.
This is the image of a __________ .
a)
RAM
b)
ROM
c)
Keyboard
d)
Motherboard
4.
An example of the computer's hardware would be ...
a)
MS Word
b)
MS Publisher
c)
Keyboard
5.
Programs that are digital and you cannot physically touch. They give instruction to the computer.
a)
keyboard
b)
mother board
c)
hardware
d)
software
6.
What is this piece of hardware?
a)
CPU
b)
Motherboard
c)
Computer/Tower
d)
Power Supply
7.
What does RAM stand for?
a)
Random Accurate Maps
b)
Really Awesome Memory
c)
Read Only Memory
d)
Random Access Memory
8.
RAM is what kind of memory?
a)
Permanant
b)
Forever
c)
Slow
d)
Temporary
9.
CPU stands for:
a)
a. Computer Power Unit
b)
b. Central Processing Unit
c)
c. Command Processing Universal
d)
d. Communication Port Unit
10.
Which device does not use an embedded system?
a)
Dishwasher
b)
Washing machine
c)
Radiator
d)
Microwave
11.
Embedded systems are used as control systems. What does this mean?
a)
They monitor and control machinery to achieve a result
b)
They control desktops and laptops
c)
They control what happens in any computer system
d)
They have a way of controlling everything
12.
Is this an embedded system?
a)
YES
b)
NO
13.
Is this an embedded system?
a)
YES
b)
NO
14.
Is this an embedded system?
a)
YES
b)
NO
15.
In a car, there is an embedded system that helps you to reverse.
a)
TRUE
b)
FALSE
16.

On a washing machine, the embedded system receives INPUT by ...

a)

Someone choosing a wash cycle

b)

Filling up the washing machine with water

c)

Draining the water

17.

This is OUTPUT from a microwave embedded system

a)

Heating the food

b)

A motor turning the plate

c)

A beeping sound signalling the end of cooking the food

d)

All of them

18.
What is an embedded system?
a)
Computers embedded into computers
b)
Computers built into other devices
c)
Computers that sleep
d)
Micro computers
19.

A micro-controller is

a)

A CPU with in-built memory

b)

A CPU without a cache memory

c)

A very small controller with a very small CPU

d)

A control mechanism built into a microchip

20.
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.
21.
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.
22.
What are the two other parts of the CPU that you learned?
a)
RAM & ROM
b)
Hard Drive & Motherboard
c)
The ALU and Cache
23.
Which level of cache is the fastest but has the smallest capacity?
a)
Level 1
b)
Level 2
c)
Level 3
d)
Level 4
24.
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.
25.
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
26.
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
27.
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
28.

Information used by the CPU is loaded first in

a)

ROM

b)

RAM

c)

CMOS

d)

Register

29.
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 
30.
ALU stands for
a)
Arithmetic Logic unit 
b)
Arithmetic Legal unit 
c)
Anti Logic unit 
d)
Arithmetic Logic undo
31.
RAM is within the CPU
a)
true
b)
FALSE
32.
The CPU needs access to the main memory and Cache memory
a)
true
b)
FALSE
33.
The correct order is
a)
Fetch, Decode, Execute
b)
Decode, Execute, Fetch
c)
Execute, Decode, Fetch
d)
Decode, Fetch, Execute
34.
Instructions are fetched from main memory
a)
True
b)
False
35.
Which part of the fetch execute cycle involves retrieving an instruction from a memory address
a)
Fetch
b)
Execute
c)
Decode
36.
Which part of the fetch execute cycle involves the CPU identifying the operation code (op-code) part of the instruction which
a)
Decode
b)
Fetch
c)
Execute
37.
Which part of the fetch execute cycle links together the parts of the CPU that are needed to carry out the instruction.
a)
Execute
b)
Decode
c)
Fetch
38.
The fetch execute cycle runs continuously when the computer is turned on.
a)
True
b)
False
39.
After an instruction is fetched, the program counter is updated so that the CPU knows the address of the next instruction to be fetched.
a)
True
b)
False
40.
During the fetch execute cycle, the CPU fetches, decodes and executes a _________
a)
instruction
b)
bit
c)
token
d)
message
41.
With the Fetch- Decode - Execute cycle, it doesn’t matter which order things take place
a)
True
b)
False
42.
One Fetch-Decode - Execute cycle must finish before the next can begin
a)
True
b)
False
43.
During the Fetch-Decode-Execute cycle the operating system loads the software into memory ready for the CPU to use
a)
True
b)
False
44.
The Memory Data Register is used during the Fetch-Decode-Execute cycle
a)
True
b)
False
45.
The Program Counter Register is used during the Fetch-Decode-Execute cycle
a)
True
b)
False
46.
After the instruction has been copied to the Instruction Register, the Program Counter will be incremented by one location value.
a)
True
b)
False
47.
During the ‘Execute’ stage of the fetch-decode-execute cycle, the Instruction register will process the instruction that was previously decoded (the accumulator processes the instruction)
a)
True
b)
False
48.
If the Accumulator is not large enough to handle all instructions sent to the CPU, general purpose registers can do it too
a)
True
b)
False
49.
The MAR and MDR are both data buses
a)
True
b)
False
50.
ROM is volatile
a)
FALSE
b)
TRUE
51.
The O in ROM stands for
a)
One
b)
Open
c)
Only
d)
Often
52.
Which one is false about the purpose of ROM?
a)
It checks to see the amount of RAM
b)
It makes decisions with information
c)
It checks the type of CPU
d)
It checks the type of hard disk installed
53.
What is the purpose of the CPU?
a)
To carry out the processing of the computer, to fetch and execute instructions.
b)
To control the computer
54.
The speed of the fetch-decode-execute cycle is stated in _______?
a)
Hertz
b)
Gigabyes
c)
Kilobyte
d)
Terabyte
55.
The higher the clock speed, the faster the CPU will run - True or False?
a)
True
b)
False
56.
A clock speed of 3MHz means how many clock cycles per second are being carried out?
a)
300
b)
3000
c)
3 million
d)
3 billion
57.
Why is Virtual Memory needed in a computer system?
a)
When several programs run at the same time, the RAM can be full. Instead of closing programs the Operating system uses virtual memory to store some data.
b)
It stores the data of the operating system and programs that are currently running, for access by the CPU.
58.
Which statement is true?
a)
RAM is part of the hard disk
b)
ROM is volatile
c)
RAM stores programs / data used by the CPU
d)
ROM contains the operating system
59.
It is better to have more ROM because the computer will boot up quicker.
a)
FALSE
b)
TRUE
60.
ROM and RAM are both 
a)
Types of Memory
b)
Types of Computer
c)
Types of Food
d)
Types of Work
61.
Which one is typically smaller in terms of data capacity?
a)
ROM
b)
RAM
62.
Full name for GPU is :
a)
Graphic Processing Unit
b)
Game Processing Unit
c)
Graphic Process Unit
d)
Game Process Unit
63.
The CPU cache is a memory buffer that sits between the hard drive and the main memory
a)
true
b)
FALSE
64.
Cache memory temporarily stores data.
a)
true
b)
FALSE
65.
The bigger the cache, the longer it takes to store instructions that the processor needs
a)
true
b)
FALSE
66.
Having a larger cache size on the CPU can improve the performance of the computer.
a)
true
b)
FALSE
67.
Multicore processors can have a separate cache for each core.
a)
true
b)
FALSE
68.
A cache makes recently accessed data immediately available to the processor
a)
true
b)
FALSE
69.
Optical device, fairly fragile, easy to snap or scratch.
a)
Flash memory
b)
Magnetic Tape
c)
CD
d)
Hard disk
70.
A ______ is the main storage device in your computer.
a)
CPU
b)
Hard drive
c)
Motherboard
d)
CD-Rom
71.
Not intended to be a portable storage device.
a)
CD
b)
Flash memory
c)
DVD
d)
Internal hard disk
72.
Same as 1,024 GB
a)
1 TB
b)
1 GB
c)
1MB
d)
1 KB
73.
Large organisations use this type of storage device to  back up their systems daily.
a)
CD
b)
DVD
c)
Blu-ray
d)
Magnetic tape
74.
Very portable as it is designed to be fitted into small electronic devices.
a)
Flash memory devices
b)
Internal hard disk
c)
Magnetic tape
d)
Server
75.
A single layer ___ can store about 4.7Gb of data.A double layer ___ can hold over 9Gb of data.
a)
DVD
b)
Flash memory
c)
Internal hard disk
d)
External hard disk
76.
The most durable storage device as it has not moving parts
a)
Solid State Storage
b)
Magnetic Storage
c)
Optical Storage
77.
Typically has the largest storage capacity and is the cheapest per gb.
a)
Magnetic storage
b)
Solid state storage
c)
Optical storage
78.
Typically stores 650mb of data on it - usually music.
a)
DVD
b)
Blu-ray
c)
CD
d)
Floppy disk
79.
Optical storage media:
a)
store data magnetically
b)
store data on their surface
c)
storage media with no moving parts, based on electronic circuits and using flash memory
d)
there aren't right answers
80.
Magnetic storage media:
a)
store data magnetically
b)
store data on their surface
c)
storage media with no moving parts, based on electronic circuits and using flash memory
d)
there aren't right answers
81.
Solidstate media
a)
there aren't right answers
b)
storage media with no moving parts, based on electronic circuits and using flash memory
c)
store data on their surface
d)
store data magnetically
82.
with such advantages what storage devices do you know?
very large, fast, low, fragile is moved, expensive
a)
fixed hard disks
b)
portable hard disks
c)
magnetic tapes
d)
Blu-ray
83.

MS-DOS is the_____________ OS

a)

Single User, Multitasking

b)

Single User, Single task

c)

CUI

d)

Both 2 & 3 Options

84.

GUI stands for

a)

Graphical User Interconnect

b)

Graphical Union Interface

c)

Graphical User Interface

d)

Geology User Interface

85.

This Icon of _________________ OS

a)

Linus

b)

Unix

c)

Windows

d)

Android

86.

This Icon is ___________________ OS

a)

Windows

b)

Linus

c)

Unix

d)

MS-DOS

87.

This Icon is ____________ OS

a)

Linus

b)

Unix

c)

Windows

d)

Android

88.

This icon is ___________________

a)

Linux

b)

Unix

c)

Windows

d)

None of These

89.

This is Icon of _______________OS

a)

Windows

b)

Linus

c)

Apple

d)

Android

90.

Which is NOT a function of Operating Systems?

a)

Booting the Computer

b)

Networking

c)

Streaming content

d)

Device Management

91.

The ability for a computer to execute more than one task simultaneously

a)

multitasking

b)

multiprogramming

c)

multiprocessing

d)

timesharing

92.

The operating system is a type of

a)

system software

b)

general purpose software

c)

utility software

d)

application software

93.

A signal sent by a hardware or software to CPU indicating that something needs attention

a)

disturbance

b)

interrupt

c)

waiting

d)

exclusion

94.
What language do operating systems use?
a)
The operators language
b)
Binary Code
c)
Code
d)
XOXO
95.

Which f these is a type of Operating System

a)

Multi User Single Application

b)

Single User Single Application

c)

Multi User Multi Tasking

d)

Single User Multi Tasking

96.
Why do we need Operating Systems? Because it
a)
Enables the user to interact with the computer
b)
Protect your computer from viruses
c)
Is of obligation to run the computer
d)
Because of the applications
97.
What is a multitasking computer
a)
Multiple computers connected
b)
Time to comlplete a task
c)
Multiple programs can be running at the same time
d)
Multiple touch mode
98.

The OS performs the following main functions

a)

Process management

b)

File management

c)

Memory management

d)

Input/Output management

99.

Process management

a)

allocates time for processes to use the CPU

b)

is responsible for creating, deleting, renaming of files and folders

c)

stores programs and data that are presently being used by the CPU

d)

is the method by which the user interacts with the computer system

100.

Memory management

a)

allocates time for processes to use the CPU

b)

is responsible for creating, deleting, renaming of files and folders

c)

stores programs and data that are presently being used by the CPU

d)

is the method by which the user interacts with the computer system

101.

File management

a)

allocates time for processes to use the CPU

b)

is responsible for creating, deleting, renaming of files and folders

c)

stores programs and data that are presently being used by the CPU

d)

is the method by which the user interacts with the computer system

102.

How does the OS provide security

a)

Using passwords or backing up files

b)

keeping a check on other processes

c)

making the

communication possible between the input and output devices and the computer

d)

Allocating

areas of memory to different programs so that each program can run effectively

103.

How does the OS provide memory management

a)

Using passwords or backing up files

b)

keeping a check on other processes

c)

making the

communication possible between the input and output devices and the computer

d)

Allocating

areas of memory to different programs so that each program can run effectively

104.

When the data collected is grouped together and processed at a later point of time such as

weekly or monthly this is called

a)

Batch processing

b)

Online processing

c)

Real-time processing

d)

Time sharing

105.

Which of the following is method for inputting, processing and outputting data continuously, and is used to

control activities as they happen?

a)

Time sharing

b)

Real-time processing

c)

Online processing

d)

Batch processing

106.

A user interface is the way in which a user interacts with a computer system.

a)

True

b)

False

107.

Select the three common software interfaces

a)

Command-driven

b)

menu-driven

c)

graphical user interface

d)

Touch screens

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