Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Computer Science Topic 1.1 - System Architecture > Secondary Storage > Flashcards

Secondary Storage Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What does Volatile mean

A

Memory that requires power to maintain the stored information - Memory is lost when there is no power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What does Non-Volatile mean?

A

Data is not lost when there is no power, not accessed directly by the CPU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is Exam Tip 1?

A

Always say if it is internal or external when choosing a suitable device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is storage medium?

A

Where data is stored and retrieved from

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Why is a storage device needed?

A

To access the storage medium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are 3 examples of storage devices?

A

DVD , Blu-ray disk and CD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the purpose of secondary storage?

A

Used to store data, programs and the operating system when the computer is turned off and Can be used to transfer between devices (if storage medium is portable)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a Kilobyte represented as?

A

kB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are 3 examples of magnetic storage?

A

Hard Disk Drives, Magnetic Tape and Floppy Disks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Why are hard disk drives easily broken?

A

Lots of parts are not secure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Why is magnetic tape used?

A

It can back up and archive data in large volumes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are solid state drives referred to as?

A

Flash memory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are 2 examples of solid state drives

A

USB Memory Stick

Memory Card

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are 5 reasons why a SSD is better than a HDD?

A 
Read-write speeds are faster
No moving parts (less likely to suffer damage)
Less power needed
Faster access speeds
Smaller (easier to move)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are 2 reasons why a HDD could be better than a SSD?

A

Cheaper

More storage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the difference between a blu-ray disk and a Digital Versatile Disk?

A

Blu-ray has better quality as there is more capacity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are 3 examples of optical storage?

A

Compact Disks (CD)
Digital Versatile Disks (DVD)
Blu-ray Disks (BD)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are pits and lands?

A

They represent the binary information of the data stored on a disk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are pits?

A

The bumps burned by lasers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are lands?

A

Areas not burned by lasers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What does a change from a pit to a land represent in binary?

A

1

22
Q

What does a change to a land to a pit represent in binary?

A

1

23
Q

What does no change represent in binary (pits and lands)

A

0

24
Q

What is CD ROM used for?

A

Generally music as it is read-only

25
Q

How much storage does a CD ROM, CD R and CD RW have?

A

700MB

26
Q

What is CD R (Recordable)?

A

A CD that can only be written once

27
Q

What is CD RW (Rewritable)?

A

A CD that can be re-written and erased many times

28
Q

What is DVD ROM used for?

A

Usually HD videos and is Read-only

29
Q

What is DVD R?

A

A DVD that can only be written to once

30
Q

What is DVD RW?

A

A DVD that can be erased and re-written many times

31
Q

How much storage do DVD ROM, DVD R and DVD RW have?

A

4.7 GB Single Layer and 9 GB double layer

32
Q

What is BD ROM?

A

A blu-ray disk that can only read-only, generally used for Ultra-High-Definition Videos

33
Q

What is BD R?

A

A blu-ray disk that can only be written to once

34
Q

What is BD RW?

A

A blu-ray disk that can be erased and re-written many times

35
Q

How much storage do BD ROM, BD R and BD RW have?

A

25GB Single, 50GB Double, 100GB Triple, 128GB Quadruple

36
Q

What are 2 facts about Magnetic Secondary Storage?

A

Mechanical drive, uses magnetic state

37
Q

What are 2 facts about Solid State Secondary Storage

A

Millions of transistors, uses electrical circuits

38
Q

What are 2 facts about Optical Secondary Storage

A

Uses a laser beam, uses pits and lands

39
Q

What has the greatest capacity? Optical Secondary Storage, Solid State Secondary Storage or Magnetic Secondary Storage?

A

Magnetic

40
Q

What is Virtual RAM?

A

A storage space on secondary storage

41
Q

What is VRAM also known as?

A

A swap file

42
Q

When is VRAM used?

A

When there is no space on the RAM

43
Q

What does VRAM do?

A

Extends the amount of RAM available

44
Q

What is 1 problem with swapping?

A

It slows down the computer as secondary storage access times are slower than RAM

45
Q

What is an embedded system?

A

Computer system embedded into other electrical equipment that performs a specific function

46
Q

What are 3 examples of an embedded system?

A

Washing machine, microwave and a RC car

47
Q

What kinds of firmware does an embedded system have?

A

ROM, Processor, Circuit Board

48
Q

Where is the firmware stored in in an embedded system?

A

The ROM

49
Q

What does a general purpose system do?

A

Performs wide range of functions

50
Q

What is an example of a general purpose system?

A

A PC

Computer Science Topic 1.1 - System Architecture (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions