Zusammenfassung der Ressource
Transmitting
Bits
- Sending
Bits
- Move bits using copper wires and electricity
- Different voltages & frequencies are sent to mean 0 or a 1
- Graphs are used to show how bits are sent
- Radio
Waves
- Can be changed over time to send data
- Waves are sent upward to bounce off the ionsphere
- The ionsphere is one of the layers of Earth's atmosphere
- Towers send electricity through antennas to create radio waves
- Ethernet
LANs
- Cables are straight-through to the pinouts so there won't be any problems with traffic
- Engineers ignore the encoding and think more about the speed
- Unshielded twisted-pair cables help prevent from electromagnetic interferences
- Fiber-Optic
Cables
- Support longer cabling distances than copper cables
- Make it easier for light to flow through to send a 1 or a 0
- They don't create EMI effects