Memory and storage

Question 1

What is secondary storage

Answer 1

long term storage of data, files, software and operating systems

Question 2

Why do we need secondary storage

Answer 2

to access data later, use software or interact with the computer

Question 3

What would happen without secondary storage

Answer 3

Software would have to be reinstalled every time its used, you couldn’t save data

Question 4

3 main types of storage are?

Answer 4

Optical, Solid state, Magnetic

Question 5

Describe optical storage

Answer 5

A laser light creates marks in a pattern on the disk to then be translated and read by another laser

Question 6

Describe magnetic storage

Answer 6

read/write across the medium and change the magnetisation from each of the mediums

Question 7

Describe solid state storage

Answer 7

Made of microchips, the state of the switches determines the storage of a 1 to a 0

Question 8

Characteristics of storage devices

Answer 8

Capacity, Speed, Portability, Durability, Reliability, Cost

Question 9

Characteristics + examples of optical storage

Answer 9

CDs and DVDs

light weight for transportation

Question 10

Characteristics + example of magnetic storage

Answer 10

Hard drive:
Cheaper
Quick access
Available in large capacities

Question 11

Characteristics and example of solid state storage

Answer 11

USB:
Compact
portable
high speed
low power consumption
expensive