Unit V: Physical Layers and its Design Issues - Data Communication and Computer Network

Physical layer is the lowest layer of the OSI reference model. It is responsible for sending bits from one computer to another. This layer is not concerned with the meaning of the bits and deals with the setup of physical connection to the network and with transmission and reception of signals.

In this “Physical Layers and its Design Issues - Data Communication and Computer Network” you will learn about following topics:

Transmission Mediums in Computer Networks
Bounded Transmission Media
Twisted Pair Cable
Twisted Pair Cables Are Of Two Types
Unshielded Twisted Pair Cable
Shielded Twisted Pair Cable
Coaxial Cable
Types of Coaxial Cables
Baseband
Broadband
Fiber Optic Cable
Unbound Transmission Media
Radiowaves Transmission
Microwave Transmission
Types of Microwave Transmission
Terrestrial Microwave
Satellite Microwave
Infra-Red
ISDN (Integrated Services Digital Network)
PSTN (Public Switched Telephone Network)
Difference between ISDN and PSTN

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