Output Devices

Question 1

Output devices used to?

Answer 1

Present into processed by a computer

Question 2

Monitor / VDU?

Types of them?

Answer 2

Displays info from computer onscreen.
CRT- moniter with cathode ray tube -bulky , generate heat

TRT&LCD - moniter with thin film transistor screen that uses LCD technology - smaller lighter

Question 3

Speakers

Advantages and disadvantages

Answer 3

Sound output.
Types ; built in (laptop speaker)
Advantage ; useful for visually impaired
Disadvantage ; sound can be distracting

Question 4

Dot matrix printer

Advantages / disadvantages

Answer 4

Dot matrix feautures ; impact, print head strines, used for invoices
Advantage ; cheap to run, carbon copy
Disadvantage - slow output