1.2 Memory and Storage

Question 1

What does RAM stand for?

Answer 1

• Random Access Memory

Question 2

What does ROM stand for?

Answer 2

• Read Only Memory

Question 3

What does the term volatile mean?

Answer 3

• Data is loss if the device is off

Question 4

What does the RAM hold?

Answer 4

• Operating system
• Programs in use

Question 5

What does the ROM hold?

Answer 5

• Bootstrap
• BIOS ( basic input and output system )

Question 6

What is Moore’s Law?

Answer 6

• Every two years the average storage of devices are doubled.

Question 7

What is L1 storage?

Answer 7

• CPU

Question 8

What is L2 storage?

Answer 8

• Cache

Question 9

What is L3 storage?

Answer 9

• Main memory
• Primary memory

Question 10

What is cache?

Answer 10

• Temporary memory
• Holds frequently used instructions

Question 11

What is an advantage of cache?

Answer 11

• Fast processing speed
• Efficient

Question 12

What is a disadvantage of cache?

Answer 12

• Expensive

Question 13

What is the definition of virtual memory?

Answer 13

• Extension of RAM
• Hard disk

Question 14

What is an advantage of virtual memory?

Answer 14

• Swap space ( auto execution )
• Saves money from buying new RAM

Question 15

What is a disadvantage of virtual memory?

Answer 15

• Shortens disk life span
• Long execution
• Slow processing speed

Question 16

What is data?

Answer 16

• Information stored on a device
• Used for processes to increase efficiency

Question 17

What is primary memory?

Answer 17

• Initial processor

Question 18

What is the equation for sound files?

Answer 18

• Bytes per sample x samples per second x channels x duration

Question 19

What is the equation for picture files?

Answer 19

• Height x width x bit depth

Question 20

+10% for …

Answer 20

• Overheads

Question 21

What is secondary storage?

Answer 21

• A memory
• External of computers

Question 22

What are the properties of secondary storage?

Answer 22

• Non volatile
• Later retrival

Question 23

What is cloud storage?

Answer 23

• Internet accessed
• Data
• External

Question 24

What are the advantages of cloud?

Answer 24

• Unlimited storage
• Provided
• Available over any device
• Automatic backup

Question 25

What are the disadvantages of cloud?

Answer 25

• Cyber attacks
• Power outage
• Internet access required

Question 26

What is magnetic storage?

Answer 26

• Mechanical
• Moves over disk to read or write
• Concentric circles

Question 27

What is optical storage?

Answer 27

• Lasers
• Light
• Pits and lands

Question 28

What is solid state storage?

Answer 28

• No moving parts

Question 29

What are the advantages of magnetic storage?

Answer 29

• Cheap
• High capacity
• Fast speed

Question 30

What are the disadvantages of magnetic storage?

Answer 30

• Low durability
• Low portability
• Moving parts

Question 31

What are the advantages of optical storage?

Answer 31

• Cheap
• Portable

Question 32

What are the disadvantages of optical storage?

Answer 32

• Low capacity
• Low durability
• Slow speed

Question 33

What are the advantages of solid state storage?

Answer 33

• High durability
• Fast speed

Question 34

What are the disadvantages of solid state storage?

Answer 34

• Expensive

Question 35

What are the six characteristics of secondary storage?

Answer 35

• Cost
• Capacity
• Durability
• Reliability
• Portability
• Speed

Question 36

Define speed ;

Answer 36

• Data transferred

Question 37

Define cost ;

Answer 37

• £ per GB

Question 38

Define capacity ;

Answer 38

• Storage medium holds

Question 39

Define durability ;

Answer 39

• Strength of medium
• Robustness

Question 40

Define portability ;

Answer 40

• Transportability

Question 41

Define reliability ;

Answer 41

• Resilience of medium

Question 42

Provide an example of magnetic storage ;

Answer 42

• Floppy disk
• Hard drive
• Tape drive

Question 43

Provide an example of optical storage ;

Answer 43

• CDs
• DVDs
• Blu Ray