Storage

Question 1

Why do we need secondary storage

Answer 1

Because RAM is volatile, any data being stored will disappear so if a copy need to be retained secondary storage retains a copy of programs and data that need to kept long term

Question 2

What is a secondary storage device

Answer 2

is the physical hardware that carries out the storage action

Question 3

Name secondary storage devices

Answer 3

Solid State Drive

A Hard Disk

Question 4

What are the advantages of magnetic storage

Answer 4

Huge capacity
Low cost
High speed

Question 5

What are the disadvantages of magnetic storage

Answer 5

Not portable
Has mechanical moving
part
data can be lost

Question 6

What are the advantages of optical storage

Answer 6

Cheap
Portable
Ideally sized

Question 7

What are the disadvantages of optical storage

Answer 7

Slow to burn
Easily scratched
Cannot write over data

Question 8

What are the advantages of solid state storage

Answer 8

Portable
Large capacity
Faster than hard disk
silent

Question 9

What are the disadvantages of solid state storage

Answer 9

expensive

less durable

Question 10

How do you calculate storage

Answer 10

megabytes / megabyte of file = x

Question 11

How would you decide is the best storage media

Answer 11

Capacity - The amount of data that can be stored

Speed - How quickly the data can be accessed

Portability- Can the media be easily moved about

Durability - How easy is it to damage

Reliability- How long is the shelf life

Cost - How expensive is it