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1.2 - Memory & Storage - E.O.U

Total questions: 123

Worksheet time: 1hrs 5mins

Name
Class
Date
1.

Question 1: RAM - What happens when the electricity Is turned off? (1-2)

a)

The data from the memory is saved onto virtual memory

b)

The data from the memory is saved onto the hard disk

c)

The data from the memory is not saved

d)

The data from the memory is saved onto ROM

2.

Question 2: Where does virtual memory live? (2-3)

a)

RAM

b)

Cache

c)

Hard Disk

d)

ROM

3.

Question 3: Where does the BIOS live?(2-3)

a)

RAM

b)

Cache

c)

Hard Disk

d)

ROM

4.

Question 4: Where are the currently used data and instructions kept? (2-3)

a)

RAM

b)

Cache

c)

Hard Disk

d)

ROM

5.

Question 5: A computer is continuously paging to the swap file. Discuss why this might be. (5-8)

a)

There is not enough RAM

b)

The cache is too slow

c)

The virtual memory is too small

d)

The hard disk is too slow

6.

Question 1: Which of the following is not a type of storage? (1/2)

a)

Optical

b)

Magnetic

c)

Solid State

d)

Hard Drive

7.

Question 2: What type of storage is a DVD ROM? (1/2)

a)

Optical

b)

Magnetic

c)

Solid State

d)

It is not a storage device

8.

Question 3: What type of storage is a USB memory stick? (4/5)

a)

Optical

b)

Magnetic

c)

Solid State

d)

It is not a storage device

9.

Question 4: What type of storage is a SSD card? (4/5)

a)

Optical

b)

Magnetic

c)

Solid State

d)

It is not a storage device

10.

Question 5: What type of storage is a HDD? (4/5)

a)

Optical

b)

Magnetic

c)

Solid State

d)

It is not a storage device

11.

Question 6: Which of the following types of storage would likely access its data the fastest? (4-6)

a)

Optical

b)

Magnetic

c)

Solid State

d)

It is not a storage device

12.

Question 7: Which of the following types of storage is the most durable? (9)

a)

Optical

b)

Magnetic

c)

Solid State

d)

They are all the same

13.

Question 8: Which of the following types of storage is the most expensive per MB/GB? (9)

a)

Optical

b)

Magnetic

c)

Solid state

d)

They are all the same

14.

Question 9: Why is a Hard Disk Drive (HDD) not very portable? (9)

a)

It has moving parts

b)

It is too large

c)

It will break if you touch it

d)

It is too small

15.

Question 10: Why does a laptop need secondary storage? (1/2)

a)

To backup files to move to another computer

b)

To store data, files and software for future use

c)

To storage programs that are currently running

d)

To store data that the processor needs

16.

Question 11: Which type of storage uses lasers to write the data? (4/5)

a)

Optical

b)

Magnetic

c)

Solid state

d)

All types

17.

Question 12: The R/W speed of storage are listed below from fastest to slowest. Which order is correct? (9)

a)

Solid State, Optical, Magnetic

b)

Optical, Magnetic, Solid State

c)

Magnetic, Optical, Solid State

d)

Solid State, Magnetic, Optical

18.

Question 13: The types of storage are listed below from least expensive per GB to the most expensive per GB. Which order is correct? (9)

a)

Solid State, Optical, Magnetic

b)

Optical, Magnetic, Solid State

c)

Magnetic, Optical, Solid State

d)

Solid State, Magnetic, Optical

19.

Question 14: The types of storage are listed below from the most reliable to the least reliable. Which order is correct? (9)

a)

Solid State, Optical, Magnetic

b)

Optical, Magnetic, Solid State

c)

Magnetic, Optical, Solid State

d)

Solid State, Magnetic, Optical

20.

Samuel is using his computer for a heavy-duty task and he doesn't have enough physical RAM. What could be the purpose of using virtual memory in Samuel's computer?

a)

To make Samuel's computer run faster

b)

To store Samuel's programs in the hard disk

c)

To provide Samuel's computer with more memory than the physical RAM

d)

To reduce the cost of Samuel's RAM

21.

Chloe, Neha, and Mira are working on a group project on their computer. Why do they have multiple programs like a web browser, a word processor, and a presentation software open at the same time?

a)

Because it makes their computer look more advanced

b)

Because it allows them to multitask better

c)

Because it saves money on RAM

d)

Because it's a requirement for all computers

22.

Isabella is working on a large project on her computer. Suddenly, she notices her computer slowing down. What could be happening if her computer is running out of RAM?

a)

James suggests that the hard disk is being used as additional RAM

b)

Samuel thinks that the CPU has stopped working

c)

Isabella thinks that instructions are being transferred to virtual memory

d)

They all think that the computer is about to shut down

23.

Jacob is playing a high-end video game on his computer. He wonders where the virtual memory required for the game is stored. Can you help Anaya and Isla explain it to him?

a)

It's stored in the motherboard of the computer.

b)

It's stored in the CPU of the computer.

c)

It's stored in the RAM of the computer.

d)

It's stored in the hard disk of the computer.

24.

Priya is working on her computer and she needs to run a large application. She decides to transfer the application's instructions to virtual memory. Why might she do this?

a)

To increase the speed of the CPU

b)

To make her computer look more advanced

c)

To free up space in RAM

d)

To save energy

25.

Chloe is working on her computer and she notices that her programs are being transferred back to RAM from virtual memory. Under what circumstances does this usually happen?

a)

When Benjamin's CPU is overheating

b)

When Mia's hard disk is full

c)

When the programs are not being executed

d)

When the computer is turned off

26.

Sophie, Leo, and Max are working on a project on their computer. They notice that even though their computer doesn't have a lot of physical memory, it seems like it has more. What gives this impression?

a)

The virtual memory

b)

The operating system

c)

The hard disk

d)

The CPU

27.

When George turns on his computer, what role does the bootstrap program play?

a)

To load the operating system from the hard disk into RAM

b)

To transfer instructions to virtual memory

c)

To fetch instructions for the CPU

d)

To shut down the computer

28.

Elsie, Harry, and Poppy are discussing their computer components. Elsie wonders, 'Why is the hard disk space in our computers cheaper than the RAM?'

a)

Harry suggests, 'Maybe because it is smaller in size.'

b)

Poppy thinks, 'Perhaps because it is slower in performance.'

c)

Harry adds, 'Or it could be because it is made of different materials.'

d)

Elsie concludes, 'I think it's because it is more cost-effective to produce.'

29.

During a school assembly, Matilda noticed a piano jingle playing in the background of a video presentation. What was the purpose of this uplifting piano jingle?

a)

To make the video presentation more interesting

b)

To entertain the students, including Isabelle and Aarav

c)

To signal the end of the video presentation

d)

To indicate important information in the video

30.

Ava is trying to send a large video file to Eesha and Noah via email, but the file is too large. What should Ava do to make the file smaller so it can be sent?

a)

Slow down the data transfer

b)

Increase the size of the file

c)

Decrease the storage capacity of her device

d)

Compress the file to reduce its size

31.

Leo, Lily, and Priya are working on a school project where they need to include images, sound, and video. Which type of compression should they use for these multimedia elements?

a)

Both types of compression

b)

Lossless compression

c)

Lossy compression

d)

No compression needed

32.

Amelia is working on a project where she needs to compress some image files. She is considering using lossy compression. What could be the main drawback of Amelia using lossy compression for her project?

a)

It will increase the size of her image files

b)

It will reduce the quality of her images

c)

It is not suitable for any type of data she has

d)

It is less effective than the lossless compression method that Priya and Arthur are using

33.

Lily is working on a project where she needs to store a large number of documents and executable files. She wants to ensure that no data is lost in the process. Which type of compression should she use?

a)

Lossy compression

b)

Lossless compression

c)

No compression needed

d)

Both types of compression

34.

William is working on a project where he needs to send a large video file over email. He decides to use lossy compression. What will be the effect of this on the file size?

a)

Greatly reduces the file size

b)

Slightly reduces the file size

c)

Increases the file size

d)

Does not affect the file size

35.

Ishaan is working on a project where he needs to compress some data without losing any information. Rosie suggests using lossless compression. For which type of data would this method be most suitable?

a)

All types of data

b)

Images and video

c)

Sound and music

d)

Documents and executable files

36.

Thomas is working on a project where he needs to store a large amount of data without losing any information. Which advantage of lossless compression would be most beneficial to him?

a)

It reduces the quality of the image or sound

b)

It greatly reduces the file size

c)

It can be used for all types of data

d)

It is less effective than lossy compression

37.

Eesha is working on a project where she needs to compress some data. She is wondering what determines the type of compression that can be used for her data. Charlie suggests it's the file size, Matilda thinks it's the internet speed, and another friend suggests it's the type of storage device. Eesha, however, believes it's the type of data. Who is correct?

a)

Charlie - File size

b)

Matilda - Internet speed

c)

Friend - Type of storage device

d)

Eesha - Type of data

38.

Arjun is uploading his vacation photos to a cloud storage. He decides to use lossy compression for his images. What could be the main reason for Arjun's decision?

a)

He wants to improve the quality of his photos

b)

He wants to increase the size of his photos

c)

He wants to reduce the quality of his photos

d)

He wants to reduce the file size and upload time

39.
ROM stands for...
a)
Read Optical Memory
b)
Random Only Memory
c)
Read Only Memory
d)
Random Optical Memory
40.
RAM stands for ...
a)
Read Access Memory
b)
Random Application Memory
c)
Read Application Memory
d)
Random Access Memory
41.
A computer has 1024 megabytes of RAM. That is the same as ...
a)
1 Gb
b)
1000 Gb
c)
1 Kb
d)
1 Tb
42.
The characteristics of RAM are it is .....
a)
Permanent, non-volatile, not expandable and you can't write to it
b)
Temporary, volatile, expandable and you can write to it.
43.
This memory stores the data of the operating system and programs that are currently running, for access by the CPU.
a)
RAM
b)
ROM
c)
Cache memory
d)
Flash memory
44.
Why is ROM need in a computer system?
a)
It stores the 'bootstrap loader' which is needed to load the operating system.Without it, the computer wouldn't turn on.
b)
It stores the data of the operating system and programs that are currently running, for access by the CPU.
45.
This is a method of making a computer appear to have more primary memory than it has really has physically. For instance a PC might have 2Gb of RAM as primary memory, but ___ of 4Gb.  If a computer relies on this memory it will be slow.
a)
Virtual Memory
b)
Random Access Memory
c)
Read Only Memory
d)
Cache Memory
46.
Why is Virtual Memory needed in a computer system?
a)
It is used as a fast type of memory for programs currently in use to speed up the performance of a computer.
b)
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.
47.
Where is data stored when it is Virtual Memory?
a)
It is stored on a area of a secondary storage device e.g. hard disk drive.
b)
It is stored in the RAM.
c)
It is stored in the ROM.
d)
It is stored in an optical drive e.g. CD.
48.
What is a disadvantage of Virtual Memory?
a)
Read/Write speed of a hard disk drive is slower than RAM. If the computer has to rely on this, the system is much slower.
b)
Read/Write speeds of a hard drive are faster than RAM, meaning the system is much faster.
49.
A type of non-volatile solid state memory technology.
a)
RAM
b)
ROM
c)
Cache memory
d)
Flash memory
50.

Which of these is Non-Volatile

a)

RAM

b)

ROM

c)

Registers

d)

Virtual Memory

51.

Function of RAM

a)

Bootstrap

b)

Currently Used Instructions

c)

BIOS

d)

Memory Management

52.

Function of ROM

a)

Load up Bootstrap

b)

Currently Used Instructions

c)

Frequently Used Instructions

d)

Saves Data

53.

What is Faster?

a)

RAM

b)

Cache

c)

ROM

54.

What level of cache is better?

a)

Level 1

b)

Level 2

c)

Level 3

d)

Equal

55.

Which of these are Main Memory

a)

RAM

b)

ROM

c)

Cache

d)

Flash

56.

Which of these is attached to the CPU?

a)

Cache

b)

RAM

c)

Operating System

57.

Which is Faster?

a)

Cache

b)

ROM

58.

What is the backup of RAM?

a)

Virtual Memory

b)

Operating System

59.
Which is the smallest storage unit in a computer?
a)
Bit
b)
Megabyte
c)
Nibble
d)
Terabyte
60.
How many bits are in a nibble?
a)
2 bits
b)
4 bits
c)
6 bits
d)
8 bits
61.
How many bytes are in a kilobyte?
a)
2
b)
124
c)
1024
d)
102440
62.
How many megabytes are in a gigabyte?
a)
750
b)
1024
c)
2000
d)
20024
63.
Convert the denary value 56 into an 8-bit binary number
a)
11000000
b)
00001111
c)
00111000
d)
01010101
64.
Convert the denary value 112 into an 8-bit binary number
a)
01110000
b)
11000000
65.
What is the largest number you can represent with 8 bits?
a)
64
b)
128
c)
200
d)
255
66.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100
67.
Convert 37 to binary
a)
00100101
b)
00100011
c)
00100111
d)
01000101
68.
Convert 11001100 to decimal
a)
224
b)
134
c)
104
d)
204
69.
Convert 00100100 to decimal
a)
26
b)
36
c)
46
d)
56
70.
Convert 65 to binary
a)
01100001
b)
00100001
c)
01000001
d)
00100101
71.
Binary uses 1’s & 0’s to represent data
a)
True
b)
False
72.
Denary is numbers humans use in every day life
a)
True 
b)
False
73.

Which of the following units is the smallest in terms of size?

Kilobyte, Megabyte,Nibble.

a)

Kilobyte

b)

Megabyte

c)

Nibble

74.

How many bits are in a byte?

a)

2

b)

4

c)

6

d)

8

75.
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
76.

What is a binary digit referred to as?

a)

Bit

b)

Bits

c)

Byte

d)

Bytes

77.
How would you write the number 4 in binary code?
a)
0100
b)
0000
c)
0001
d)
0010
78.

Computers store all data using...

a)

Binary

b)

Hexadecimal

c)

Decimal

d)

Octal

79.

George, Arjun, and Priya are working on a computer science project. They need to encode the 26 letters of the alphabet into binary. How many bits would they need to represent each letter?

a)

6 bits

b)

3 bits

c)

4 bits

d)

5 bits

80.

Muhammad, Arjun, and Ishaan are working on a project to create a new character set that can store 128 unique characters. What is the minimum number of bits they would need to store each character in their set?

a)

5 bits

b)

6 bits

c)

7 bits

d)

8 bits

81.

Isabella, Isla, and James are working on a computer science project about character encoding. They learned about the 7-bit ASCII character set. Can you help them figure out how many characters this set can identify?

a)

160 characters

b)

96 characters

c)

128 characters

d)

64 characters

82.

Thomas, Priya, and Sophia are working on a project to understand the history of ASCII codes. They came across an 8-bit ASCII code called Extended ASCII. Can you help them understand the purpose of Extended ASCII?

a)

All of the above

b)

It was developed to provide additional punctuation symbols

c)

It was created to include emojis

d)

It was designed to provide characters for foreign languages

83.

Mira, Oliver, and Ava are working on a project to create a new software that can process text from every written language, historical scripts, and even modern characters such as emojis. Which character set should they use for this purpose?

a)

ASCII

b)

EBCDIC

c)

Extended ASCII

d)

Unicode

84.

Ella is creating a website and she wants to use a variant of Unicode where the first 8 bits are the same as ASCII. Which one should she use?

a)

UTF-8

b)

UTF-16

c)

UTF-32

d)

UTF-64

85.

Poppy, Aarav, and Jacob are working on a computer science project. They are discussing the Unicode character set. Jacob asks, 'How many bits is the current Unicode character set expressed in?'

a)

24 bits

b)

20 bits

c)

16 bits

d)

32 bits

86.

Isla, Elsie, and Grace are working on a project where they need to express Unicode numbers in 6-digit hexadecimal. Grace wonders why they need to do this. What could be the purpose?

a)

To improve the performance of their computer

b)

To make it easier for them to refer to a particular character and their code

c)

To make their project compatible with ASCII

d)

To reduce the memory usage of their project

87.

Rohan is working on his computer and wants to send a message to his friend Sebastian using emojis. Henry told him that a certain feature in the computer system allows this. What is the main purpose of this feature, known as a character set, in a computer system?

a)

To store numbers only

b)

To store characters and emojis

c)

To store images and videos

d)

To store audio files

88.

Grace, Amelia, and Freya are learning about the ASCII character set in their computer science class. They came across 7 reserved numbers in the set. What was the purpose of these reserved numbers?

a)

They were used to store additional punctuation symbols

b)

They were used to represent special characters and instructions to the computer

c)

They were used to include emojis

d)

They were used to provide characters for foreign languages

89.

How many bytes are there per character in a text file?

a)

0.5

b)

1

c)

1.5

d)

2

90.

Which is the smallest of these data capacities?

a)

2 KB

b)

2049 bytes

c)

0.5 MB

d)

3 GB

91.

Which of these data capacities is the largest?

a)

2048 MB

b)

2 GB

c)

2050 MB

d)

100,000 KB

92.

Which formulae can be used to estimate the file size of an image?

a)

number of pixels x number of bytes per pixel

b)

number of pixels

c)

number of pixels wide x number of pixels high x number of bytes per pixel

d)

number of pixels wide x number of bytes per pixel x number of pixels

93.

Which formulae can be used to estimate the file size of a sound file?

a)

bytes per sample x channels x height + number of minutes

b)

samples per second x number of seconds

c)

samples per second x bytes per sample x duration

d)

bytes per sample x samples per second x channels x duration

94.

How many bytes are needed to store

32,769 different colours

a)

1

b)

2

c)

3

d)

4

95.
Which compression technique will allow faster file transfers?
a)
Lossy
b)
Lossless
96.
Which compression technique permanently removes data
a)
Lossy
b)
Lossless
97.
Which compression technique reduces the file size by storing repeating details together?
a)
Lossy
b)
Lossless
98.
Which compression technique removes data from the file to make it smaller?
a)
Lossy
b)
Lossless
99.
The more the file is compressed, the lower the quality it will be
a)
Lossy
b)
Lossless
100.
Used for text files or files with lots of data repetition
a)
Lossy
b)
Lossless
101.
The compressed file can be returned to the original
a)
Lossy
b)
Lossless
102.
The compressed file cannot be returned to the original
a)
Lossy
b)
Lossless
103.
The compressed file can be returned to the original
a)
Lossy
b)
Lossless
104.
Generally used for images and sound files
a)
Lossy
b)
Lossless
105.
I have a lot of files to store, which compression technique is best to use?
a)
Lossy
b)
Lossless
106.
I want to compress and send a friend a program file, which technique is best to use?
a)
Lossy
b)
Lossless
107.
Images on websites which have been run through lossy compresion will load quicker
a)
True
b)
False
108.
Compression in general makes it ______ to send, upload and stream data
a)
Quicker
b)
Slower
109.
Lossy compression looks for ______ data
a)
Unnecessary
b)
Repeated
110.
Lossless compression is best used on
a)
Word Documents and Programs
b)
Images and Sound Files
111.
Lossy compression is best used on
a)
Word Documents and Programs
b)
Images and Sound Files
112.
This compression technique does not compromise the data's quality
a)
Lossy
b)
Lossless
113.
This compression technique does not reduce the size of data as much
a)
Lossy
b)
Lossless
114.
Requires processing power to uncompress the image
a)
Lossy
b)
Lossless
115.

Ava is trying to send a large video file to Eesha and Noah via email, but the file is too large. What should Ava do to make the file smaller so it can be sent?

a)

Slow down the data transfer

b)

Increase the size of the file

c)

Decrease the storage capacity of her device

d)

Compress the file to reduce its size

116.

Leo, Lily, and Priya are working on a school project where they need to include images, sound, and video. Which type of compression should they use for these multimedia elements?

a)

Both types of compression

b)

Lossless compression

c)

Lossy compression

d)

No compression needed

117.

Amelia is working on a project where she needs to compress some image files. She is considering using lossy compression. What could be the main drawback of Amelia using lossy compression for her project?

a)

It will increase the size of her image files

b)

It will reduce the quality of her images

c)

It is not suitable for any type of data she has

d)

It is less effective than the lossless compression method that Priya and Arthur are using

118.

Lily is working on a project where she needs to store a large number of documents and executable files. She wants to ensure that no data is lost in the process. Which type of compression should she use?

a)

Lossy compression

b)

Lossless compression

c)

No compression needed

d)

Both types of compression

119.

William is working on a project where he needs to send a large video file over email. He decides to use lossy compression. What will be the effect of this on the file size?

a)

Greatly reduces the file size

b)

Slightly reduces the file size

c)

Increases the file size

d)

Does not affect the file size

120.

Ishaan is working on a project where he needs to compress some data without losing any information. Rosie suggests using lossless compression. For which type of data would this method be most suitable?

a)

All types of data

b)

Images and video

c)

Sound and music

d)

Documents and executable files

121.

Thomas is working on a project where he needs to store a large amount of data without losing any information. Which advantage of lossless compression would be most beneficial to him?

a)

It reduces the quality of the image or sound

b)

It greatly reduces the file size

c)

It can be used for all types of data

d)

It is less effective than lossy compression

122.

Eesha is working on a project where she needs to compress some data. She is wondering what determines the type of compression that can be used for her data. Charlie suggests it's the file size, Matilda thinks it's the internet speed, and another friend suggests it's the type of storage device. Eesha, however, believes it's the type of data. Who is correct?

a)

Charlie - File size

b)

Matilda - Internet speed

c)

Friend - Type of storage device

d)

Eesha - Type of data

123.

Arjun is uploading his vacation photos to a cloud storage. He decides to use lossy compression for his images. What could be the main reason for Arjun's decision?

a)

He wants to improve the quality of his photos

b)

He wants to increase the size of his photos

c)

He wants to reduce the quality of his photos

d)

He wants to reduce the file size and upload time