WIRED TRANSMISSION METHODS 2 Flashcards
1
Q
What are wireless transmission methods?
A
Wireless transmission methods do not use cables. Data is transmitted through the air using electromagnetic waves.
2
Q
What are the 3 wireless transmission methods?
A
- Infrared
- Microwave
- Satellite
3
Q
What does INFRARED do?
A
It uses infrared light to transfer data
( invisible to the human eye)
4
Q
What does MICROWAVE do?
A
Uses short wavelengths to transmit data
(invisible to the human eye)
5
Q
What does SATELLITES do?
A
Uses satellites in space to relay data between different points on Earth
6
Q
Benefits of INFRARED?
A
- Reliable
7
Q
Disadvantages of INFRARED?
A
- Short range
- Devices must be in line of sight
- Can suffer from interference
8
Q
Benefits of MICROWAVE?
A
- Good for longer distances
9
Q
Disadvantages of MICROWAVE?
A
- Can suffer from interference from other devices
10
Q
Benefits of SATELLITE?
A
- Good for very long distances
11
Q
Disadvantages of SATELLITE?
A
- Very expensive
12
Q
What is wireless networking?
A
- Wireless networking means that a user can connect a device to the internet anywhere where there is an internet connection
- Devices using wireless will need a wireless network interference card
