Data Transmission Flashcards
0
Q
What are analogue signals?
A
They can have any value and can be used to transmit data
1
Q
Infrared radiation is a type of what wave?
A
Electromagnetic
2
Q
What are dialogue signals?
A
They can be used to transmit data but they don’t vary they only have two states on and off
3
Q
What is infrared used in?
A
Remote controls
4
Q
Advantage of wireless communication?
A
Portable
5
Q
Disadvantage of wireless communication?
A
Aerial is needed to pick up a signal
