Communication mode is the method used to transfer data between two devices in a network.
It tells:
There are 3 main types:
Data flows in only one direction. One device sends data and the other only receives.
TV station sends signals to viewers.
Radio station broadcasts sound only.
Keyboard sends data to computer.
Speaker only gives sound output.
Both devices can send and receive data, but not at the same time.
One person talks while the other listens.
Both devices can send and receive data at the same time.
Both people can talk together.
Audio and video work both ways simultaneously.
Communication media is the path or channel used to transfer data from one device to another.
It helps data travel between computers and devices.
There are 2 main types:
Data travels through physical cables or wires.
Two copper wires twisted together.
Cable with copper wire and protective covering.
Cable that uses light signals to transfer data.
Data travels through air without wires.
| Guided Media | Unguided Media |
|---|---|
| Uses wires | Wireless |
| More secure | Less secure |
| Faster and stable | May face signal problems |
| Example: Fiber cable | Example: Wi-Fi |
Networking devices are hardware devices used to connect computers and other devices in a network and help them communicate and share data with each other.
Example: Like making an announcement to the whole class.
Example: Like giving a letter directly to the correct person.
Example: Like repeating a message loudly so everyone can hear it.
Example: Like a bridge connecting two villages.
Example: Like a traffic police officer directing vehicles to the right road.