COMPUTER SCIENCE AND ENGINEERING
COMPUTER NETWORKING
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
transmission
|
|
|
wireless communication
|
|
|
data transfer
|
|
|
None of the above
|
Detailed explanation-1: -Wireless communications is the transmission of voice and data without cable or wires. In place of a physical connection, data travels through electromagnetic signals broadcast from sending facilities to intermediate and end-user devices.
Detailed explanation-2: -Radio is considered to be the first wireless service to be broadcast. It is an example of a Simplex Communication System where the information is transmitted only in one direction and all the users receiving the same data.
Detailed explanation-3: -Wireless data communication is a technology that uses the radio spectrum to transmit signals through the atmosphere. It may carry analog or digital signals and can be used on LANs or WANs in one-or two-way networks.
Detailed explanation-4: -The receiver was called a wireless because there were no wires linking to the the transmitting station. It was called radio because the transmitting station radiated electromagnetic waves.
Detailed explanation-5: -The devices used for wireless communication are cordless telephones, mobiles, GPS units, ZigBee technology, wireless computer parts, and satellite television, etc.