This document defines and classifies different types of transmission media used for computer networks. It discusses bounded media such as twisted pair cable, coaxial cable, fiber optic, microwave, and infrared. It provides details on twisted pair cable, coaxial cable, infrared, microwaves, and fiber optic cable. It compares UTP and STP cables and discusses the advantages and disadvantages of each transmission medium. It acknowledges the teacher for support and lists references used.

1. TRANSMISSION MEDIA

2. BROTHERS HITESH.M.P MANDEEP.R.J JANARDHAN.C VIKRAM

3. DEFINITION CLASSIFICATION OF MEDIA TYPE TWISTED PAIR CABLE CO-AXIAL CABLE INFRARED MICROWAVES FIBRE OPTICS COMPARISON TABLE ACKNOWLEDGEMENT BIBLIOGRAPHY CONTENTS

4. The term Transmission media refer to the technical device which employs the material substance to transmit or guide the waves. Transmission media are the physical pathways that connect computers, other devices, and people on a network—the highways and byways that comprise the information superhighway DEFINITION

6. Co-axial cable

7. Fiber optic

8. Microwave

9. infraredUNBOUNDED MEDIA

12. ADVANTAGES DISADVANTAGES EASY TO TERMINATE COST OF INSTALLATION IS LESS HIGH INSTALLED BASE IT IS VERY NOSIY IT COVERS LESS DISTANCE IT SUFFERS FROM INTERFERENCE

13. S.T.P CABLE: It offers protective sheathing around the copper wire. Provides better performance at lower data rates. Not commonly used Installation is easy Distance is only 100-500 meters Special connecters are required. Also suffers from outside interference.

14. Comparison of UTP and STP

15. Co-axial cable It is an electrical cable Invented by Oliver Heaviside in1880

17. 1950s- Submarine cables

18. Late 1960s- Data processing

19. 1980-1987- LANs

20. Used for both analog and digital data transmission

21. In Cable television networkAPPLICATIONS

22. Advantages Disadvantages Broadband Systems Greater bandwidth Lower error rates Used for both analog and digital data transmission Bidirectional upgrade required Great noise Higher installation cost Number of node connections is limited Susceptible to damage from lightning

23. INFRARED Used for short range communication Applications of IR technology are Car locking systems Home security systems Telephones Navigations systems TVs,VCRs,CD players, stereos

25. Light weather sensitive

26. Short range

28. Limitations Repeaters are required to maintain the signal strength. Cellular Phone Network Wireless LAN Point-to-Point communication Applications

30. How optical fibers work?

31. They may be single, but often they are bundled together in centre of cable

32. They are either single mode or multimode.

35. Glass core with plastic cladding

38. ACKNOWLEDGEMENT We first and foremost would like to thank our teacher MYDHILI NAIR for her support throughout and also giving us innovative ideas. We would also like to thank all the teachers for giving us this opportunity. Finally, a big thanks to all our friends.

39. http://www.informit.com/articles/article.aspx?p=683070 http://en.wikipedia.org/wiki/Transmission_medium Data communication and networking – BehrouzA.Forouzan Computer networks BIBLIOGRAPHY