Wireless communication was introduced in the 19th century.
Wireless communication is a type of data communication in which information is transmitted and received between two or more devices without any use of wire or cable.
The transmitted distance can be anywhere between a few meters to thousands of kilometers.
It uses electromagnetic signals like IR, RF etc to transfer data.
1 Cellular telephones
2 Satellite communication
3 Broadcast Radio
1 Easy to install.
2 Data can be transmitted faster and with a high speed.
3 Users can share files with other devices that are connected to the network without the use of any cable.
4 Cost effectiveness-Reduce cost of cables, maintenance etc.
6 Global coverage.
1 Security - unauthorized person can easily access wireless signals.
2 Power consumption.
3 Range will be insufficient for large structures.
1 Wireless routers
2 Wireless printers
3 Wireless adaptors
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