A transmission media can be represented as anything that can take data from a source to a destination. The transmission media function maintains the data in the form of bits through LAN (Local Area Network).
In data communications, the definition of the data and the transmission medium is more precise. The transmission medium is generally free space (i.e., air), metallic cable or fiber-optic cable. The data is frequently a signal that is the result of a conversion of data from another form.
Following are the two types of transmission media −
In the guided media, the signal energy is involved and guided within a solid media. The guided media can be used for point-to-point communication. Examples of guided media are Twisted pair cable, Co-axial Cable, and Fiber optic cable.
In this media, the signal energy propagates in the structure of unguided electromagnetic waves. Examples of unguided media are radio and infrared light.
|Wired Media||Wireless Media|
|The signal energy is contained and guided or propagated inside a solid medium.||The signal energy propagates in the structure of unguided electromagnetic waves in the air.|
|It can be used for point to point communication.||It can be used for radio advertising in all directions.|
|It makes discrete network topologies.||It makes continuous network topology.|
|This capacity can be further increased by inserting more cables for transmission.||In this capacity of transmission cannot be increased beyond the limit.|
|It is expensive, time-consuming and difficult to install.||Its installation is less time-consuming.|
|Examples are twisted pair, Co-axial cable, and Optical fiber.||An example is Radio & Infrared Waves.|