Access speed, uses and capacities of storage

Question 1

What is the capacity of a magnetic hard disk?

Answer 1

19.3 GB - 1.2 TB

Question 2

What is the access time of a magnetic hard drive?

Answer 2

under 10ms

Question 3

What is the capacity of a magnetic floppy disk?

Answer 3

~1MB

Question 4

What is the access time of a magnetic floppy disk?

Answer 4

94ms

Question 5

What is the capacity of a magnetic tape cartridge or cassette?

Answer 5

10-800GB

Question 6

What is the access time of a magnetic tape cartridge or cassette?

Answer 6

long

Question 7

What is the capacity of CD?

Answer 7

600-700 MB

Question 8

What is the access time of CD?

Answer 8

~100ms

Question 9

What is the capacity of DVD?

Answer 9

2.8-17.1 GB

Question 10

What is the access time of DVD?

Answer 10

~100ms

Question 11

What is the capacity of blu ray?

Answer 11

25-50 GB

Question 12

What is the access time of blu ray?

Answer 12

110ms

Question 13

What is the capacity of PDD?

Answer 13

25-50 GB

Question 14

What is the access time of PDD?

Answer 14

100ms

Question 15

What doe PDD stand for?

Answer 15

professional disc for data

Question 16

What is the capacity of HD DVD?

Answer 16

15-51 GB

Question 17

What is the access time of HD DVD?

Answer 17

500ms

Question 18

What is the capacity of USB flash drive?

Answer 18

32MB - 5GB

Question 19

What is the access time of USB flash drive?

Answer 19

0.8-10 ms

Question 20

What is the capacity of a memory card?

Answer 20

128MB - 4GB

Question 21

What is the access time of a memory card?

Answer 21

0.8 - 10 ms

Question 22

What is the use of a magnetic hard disk?

Answer 22

Storage of programs and data files in a computer

Question 23

What is the use of a magnetic floppy disk?

Answer 23

backing up and transferring small files, boot disk for an operating system

Question 24

What is the use of magnetic tape?

Answer 24

backing up and archiving large volumes of data

Question 25

What is the use of CD-ROM?

Answer 25

Distributing software

Question 26

What is the use of CD-RW?

Answer 26

backing up data, transferring files

Question 27

What is the use of CD-R?

Answer 27

transferring files, distributing software, storing photographs, backing up data, archiving data

Question 28

What is the use of DVD-ROM?

Answer 28

Distributing software or videos

Question 29

What is the use of DVD-R?

Answer 29

transferring files, distributing software or videos, storing photographs, backing up data, archiving data

Question 30

What is the use of DVD-RW?

Answer 30

backing up data, transferring files

Question 31

What is the use of DVD-RAM?

Answer 31

backing up data

Question 32

What is the use of blu-ray?

Answer 32

distributing videos

Question 33

What is the use of PDD?

Answer 33

Backing up and archiving data

Question 34

What is the use of HD-DVD?

Answer 34

recording high density video

Question 35

What is the use of a USB flash drive?

Answer 35

transferring files, running applications

Question 36

What is the use of a memory card?

Answer 36

storing photos in a digital camera
storing music in audio devices
storing data in mobile phones

Question 37

What does backing up data mean?

Answer 37

Taking a copy of data and storing it somewhere safe

eg a fireproof safe or somewhere off-site

Question 38

What does archiving data mean?

Answer 38

removing data from the online storage medium, usually to free up space

Question 39

When will data qualify for archiving?

Answer 39

It has not been accessed recently and will not be accessed regularly in the future