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.

Physical Layers and its Design Issues - Data Communication and Computer Network

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

  1. Transmission Mediums in Computer Networks
  2. Bounded Transmission Media
  3. Twisted Pair Cable
  4. Twisted Pair Cables Are Of Two Types
  5. Unshielded Twisted Pair Cable
  6. Shielded Twisted Pair Cable
  7. Coaxial Cable
  8. Types of Coaxial Cables
  9. Baseband
  10. Broadband
  11. Fiber Optic Cable
  12. Unbound Transmission Media
  13. Radiowaves Transmission
  14. Microwave Transmission
  15. Types of Microwave Transmission
  16. Terrestrial Microwave
  17. Satellite Microwave
  18. Infra-Red
  19. ISDN (Integrated Services Digital Network)
  20. PSTN (Public Switched Telephone Network)
  21. Difference between ISDN and PSTN




==== Point to Note ====

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BCA 6th Semester DCCN (Data Communication And Computer Network) Notes Pdf:

  1. Unit I: Background Study And Revision - Data Communication And Computer Network
  2. Unit II: Data Transmission - Data Communication And Computer Network
  3. Unit III: Multiplexing And Switching - Data Communication And Computer Network
  4. Unit IV: Reference Model - Data Communication And Computer Network
  5. Unit VI: Data Link Layer - Data Communication And Computer Network
  6. Unit VII: TCP/IP Reference Model - Data Communication And Computer Network
  7. Unit VIII: Network Layer And Internet Layer - Data Communication And Computer Network
  8. Unit IX: Network Servers - Data Communication And Computer Network
  9. Unit X: VPN And Network Security - Data Communication And Computer Network