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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