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Worksheets1.2 - Memory & Storage - E.O.U
Total questions: 123
Worksheet time: 1hrs 5mins
Question 1: RAM - What happens when the electricity Is turned off? (1-2)
The data from the memory is saved onto virtual memory
The data from the memory is saved onto the hard disk
The data from the memory is not saved
The data from the memory is saved onto ROM
Question 2: Where does virtual memory live? (2-3)
RAM
Cache
Hard Disk
ROM
Question 3: Where does the BIOS live?(2-3)
RAM
Cache
Hard Disk
ROM
Question 4: Where are the currently used data and instructions kept? (2-3)
RAM
Cache
Hard Disk
ROM
Question 5: A computer is continuously paging to the swap file. Discuss why this might be. (5-8)
There is not enough RAM
The cache is too slow
The virtual memory is too small
The hard disk is too slow
Question 1: Which of the following is not a type of storage? (1/2)
Optical
Magnetic
Solid State
Hard Drive
Question 2: What type of storage is a DVD ROM? (1/2)
Optical
Magnetic
Solid State
It is not a storage device
Question 3: What type of storage is a USB memory stick? (4/5)
Optical
Magnetic
Solid State
It is not a storage device
Question 4: What type of storage is a SSD card? (4/5)
Optical
Magnetic
Solid State
It is not a storage device
Question 5: What type of storage is a HDD? (4/5)
Optical
Magnetic
Solid State
It is not a storage device
Question 6: Which of the following types of storage would likely access its data the fastest? (4-6)
Optical
Magnetic
Solid State
It is not a storage device
Question 7: Which of the following types of storage is the most durable? (9)
Optical
Magnetic
Solid State
They are all the same
Question 8: Which of the following types of storage is the most expensive per MB/GB? (9)
Optical
Magnetic
Solid state
They are all the same
Question 9: Why is a Hard Disk Drive (HDD) not very portable? (9)
It has moving parts
It is too large
It will break if you touch it
It is too small
Question 10: Why does a laptop need secondary storage? (1/2)
To backup files to move to another computer
To store data, files and software for future use
To storage programs that are currently running
To store data that the processor needs
Question 11: Which type of storage uses lasers to write the data? (4/5)
Optical
Magnetic
Solid state
All types
Question 12: The R/W speed of storage are listed below from fastest to slowest. Which order is correct? (9)
Solid State, Optical, Magnetic
Optical, Magnetic, Solid State
Magnetic, Optical, Solid State
Solid State, Magnetic, Optical
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)
Solid State, Optical, Magnetic
Optical, Magnetic, Solid State
Magnetic, Optical, Solid State
Solid State, Magnetic, Optical
Question 14: The types of storage are listed below from the most reliable to the least reliable. Which order is correct? (9)
Solid State, Optical, Magnetic
Optical, Magnetic, Solid State
Magnetic, Optical, Solid State
Solid State, Magnetic, Optical
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?
To make Samuel's computer run faster
To store Samuel's programs in the hard disk
To provide Samuel's computer with more memory than the physical RAM
To reduce the cost of Samuel's RAM
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?
Because it makes their computer look more advanced
Because it allows them to multitask better
Because it saves money on RAM
Because it's a requirement for all computers
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?
James suggests that the hard disk is being used as additional RAM
Samuel thinks that the CPU has stopped working
Isabella thinks that instructions are being transferred to virtual memory
They all think that the computer is about to shut down
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?
It's stored in the motherboard of the computer.
It's stored in the CPU of the computer.
It's stored in the RAM of the computer.
It's stored in the hard disk of the computer.
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?
To increase the speed of the CPU
To make her computer look more advanced
To free up space in RAM
To save energy
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?
When Benjamin's CPU is overheating
When Mia's hard disk is full
When the programs are not being executed
When the computer is turned off
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?
The virtual memory
The operating system
The hard disk
The CPU
When George turns on his computer, what role does the bootstrap program play?
To load the operating system from the hard disk into RAM
To transfer instructions to virtual memory
To fetch instructions for the CPU
To shut down the computer
Elsie, Harry, and Poppy are discussing their computer components. Elsie wonders, 'Why is the hard disk space in our computers cheaper than the RAM?'
Harry suggests, 'Maybe because it is smaller in size.'
Poppy thinks, 'Perhaps because it is slower in performance.'
Harry adds, 'Or it could be because it is made of different materials.'
Elsie concludes, 'I think it's because it is more cost-effective to produce.'
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?
To make the video presentation more interesting
To entertain the students, including Isabelle and Aarav
To signal the end of the video presentation
To indicate important information in the video
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?
Slow down the data transfer
Increase the size of the file
Decrease the storage capacity of her device
Compress the file to reduce its size
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?
Both types of compression
Lossless compression
Lossy compression
No compression needed
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?
It will increase the size of her image files
It will reduce the quality of her images
It is not suitable for any type of data she has
It is less effective than the lossless compression method that Priya and Arthur are using
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?
Lossy compression
Lossless compression
No compression needed
Both types of compression
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?
Greatly reduces the file size
Slightly reduces the file size
Increases the file size
Does not affect the file size
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?
All types of data
Images and video
Sound and music
Documents and executable files
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?
It reduces the quality of the image or sound
It greatly reduces the file size
It can be used for all types of data
It is less effective than lossy compression
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?
Charlie - File size
Matilda - Internet speed
Friend - Type of storage device
Eesha - Type of data
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?
He wants to improve the quality of his photos
He wants to increase the size of his photos
He wants to reduce the quality of his photos
He wants to reduce the file size and upload time
Which of these is Non-Volatile
RAM
ROM
Registers
Virtual Memory
Function of RAM
Bootstrap
Currently Used Instructions
BIOS
Memory Management
Function of ROM
Load up Bootstrap
Currently Used Instructions
Frequently Used Instructions
Saves Data
What is Faster?
RAM
Cache
ROM
What level of cache is better?
Level 1
Level 2
Level 3
Equal
Which of these are Main Memory
RAM
ROM
Cache
Flash
Which of these is attached to the CPU?
Cache
RAM
Operating System
Which is Faster?
Cache
ROM
What is the backup of RAM?
Virtual Memory
Operating System
Which of the following units is the smallest in terms of size?
Kilobyte, Megabyte,Nibble.
Kilobyte
Megabyte
Nibble
How many bits are in a byte?
2
4
6
8
What is a binary digit referred to as?
Bit
Bits
Byte
Bytes
Computers store all data using...
Binary
Hexadecimal
Decimal
Octal
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?
6 bits
3 bits
4 bits
5 bits
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?
5 bits
6 bits
7 bits
8 bits
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?
160 characters
96 characters
128 characters
64 characters
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?
All of the above
It was developed to provide additional punctuation symbols
It was created to include emojis
It was designed to provide characters for foreign languages
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?
ASCII
EBCDIC
Extended ASCII
Unicode
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?
UTF-8
UTF-16
UTF-32
UTF-64
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?'
24 bits
20 bits
16 bits
32 bits
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?
To improve the performance of their computer
To make it easier for them to refer to a particular character and their code
To make their project compatible with ASCII
To reduce the memory usage of their project
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?
To store numbers only
To store characters and emojis
To store images and videos
To store audio files
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?
They were used to store additional punctuation symbols
They were used to represent special characters and instructions to the computer
They were used to include emojis
They were used to provide characters for foreign languages
How many bytes are there per character in a text file?
0.5
1
1.5
2
Which is the smallest of these data capacities?
2 KB
2049 bytes
0.5 MB
3 GB
Which of these data capacities is the largest?
2048 MB
2 GB
2050 MB
100,000 KB
Which formulae can be used to estimate the file size of an image?
number of pixels x number of bytes per pixel
number of pixels
number of pixels wide x number of pixels high x number of bytes per pixel
number of pixels wide x number of bytes per pixel x number of pixels
Which formulae can be used to estimate the file size of a sound file?
bytes per sample x channels x height + number of minutes
samples per second x number of seconds
samples per second x bytes per sample x duration
bytes per sample x samples per second x channels x duration
How many bytes are needed to store
32,769 different colours
1
2
3
4
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?
Slow down the data transfer
Increase the size of the file
Decrease the storage capacity of her device
Compress the file to reduce its size
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?
Both types of compression
Lossless compression
Lossy compression
No compression needed
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?
It will increase the size of her image files
It will reduce the quality of her images
It is not suitable for any type of data she has
It is less effective than the lossless compression method that Priya and Arthur are using
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?
Lossy compression
Lossless compression
No compression needed
Both types of compression
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?
Greatly reduces the file size
Slightly reduces the file size
Increases the file size
Does not affect the file size
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?
All types of data
Images and video
Sound and music
Documents and executable files
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?
It reduces the quality of the image or sound
It greatly reduces the file size
It can be used for all types of data
It is less effective than lossy compression
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?
Charlie - File size
Matilda - Internet speed
Friend - Type of storage device
Eesha - Type of data
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?
He wants to improve the quality of his photos
He wants to increase the size of his photos
He wants to reduce the quality of his photos
He wants to reduce the file size and upload time
