SLR 3

Question 1

What’s the definition for ‘input device’?

Answer 1

Any device that allows you to pass information from the outside world into a computer system

Question 2

What’s the definition for ‘output device’?

Answer 2

Any device that can take data stored in digital form and convert it into another format that humans can process such as sound, images or vibrations

Question 3

What’s the definition for ‘storage device’?

Answer 3

Any device used for either temporary or permanent storage of data - can be internal or external

Question 4

What are the positives of Optical Storage?

Answer 4

Cheap
Lightweight
Portable

Question 5

What are the negatives of Optical Storage?

Answer 5

Slow access times
Prone to scratches

Question 6

How does Optical Storage work?

Answer 6

The disc is scanned by lasers that retrieve binary data

Question 7

What are the positives of magnetic storage?

Answer 7

Cheap
Large Capacity

Question 8

What are the negatives of magnetic storage?

Answer 8

Slow access times
Fragile

Question 9

How does magnetic storage work?

Answer 9

Read/write heads are used to detect the magnestism of tiny magnetic particles

Question 10

What are the positives of solid state storage?

Answer 10

Durable
Fast access times

Question 11

What are the negatives of solid state storage?

Answer 11

Cost
Limited read/writes

Question 12

How does solid state storage work?

Answer 12

Data is stored inside floating gate transistors that store electrons

Question 13

What is ROM (Read Only Memory?)

Answer 13

Non-volatile storage (data isn’t lost when power is deactivated)

Contains Bootstrap

Question 14

What is RAM (Random Access Memory)?

Answer 14

Temporary volatile storage which holds data executed by the processor

Question 15

What is the bootstrap?

Answer 15

Very first instructions done on a computer when it’s turned on

Question 16

What is POST (Power-on-self-test)?

Answer 16

Part of the bootstrap (first instructions on a computer) which sends signals to all connected components that wakes them up and makes the CPU aware of their existence

Question 17

What is Virtual Storage?

Answer 17

The concept of storing and retrieving data over the internet in the cloud instead of a local storage device

Question 18

What are the advantages of virtual storage?

Answer 18

Data can be accessed at any time with any device as long as there is internet access

Data can be easily shared without the use of USB’s and similar things

Easy to collaborate

Storage considered to be limitless from the user’s point of view