Computer networks.51

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Computer networks.51

  1. 1. http://improvec.blogspot.in/ 1Computer Networks
  2. 2. http://improvec.blogspot.in/ 2ObjectiveOn the completion of this period you would be ableto know Meaning of Computer Network Kinds of computer Networks
  3. 3. http://improvec.blogspot.in/ 3Introduction to Network Initially all computers and other informationprocessing devices were stand alone only Their information was available only to those whohad direct connection to them
  4. 4. http://improvec.blogspot.in/ 4Computer Network Interconnection of a group of computer systems and itsrelated devices
  5. 5. http://improvec.blogspot.in/ 5Fig 136.1 A Simple Network Example
  6. 6. http://improvec.blogspot.in/ 6Fig 136.2 Computer Network of Different resources
  7. 7. http://improvec.blogspot.in/ 7Computer Network needs To share resources. (files,printers,modem,fax machines) To Share application Software (Ms office) Increase productivity-Getting done more work
  8. 8. http://improvec.blogspot.in/ 8Computer networks may be classifiedaccording to the scale.
  9. 9. http://improvec.blogspot.in/ 9Personal area network (PAN)• .
  10. 10. http://improvec.blogspot.in/ 10Local Area Network (LAN)•.
  11. 11. http://improvec.blogspot.in/ 11Campus Area Network (CAN)• .
  12. 12. http://improvec.blogspot.in/ 12Metropolitan area network (MAN).
  13. 13. http://improvec.blogspot.in/ 13Wide area network (WAN)•.
  14. 14. http://improvec.blogspot.in/ 14Mixed Net work
  15. 15. http://improvec.blogspot.in/ 15Basic TypesThere are basically two types of Computer Networks Local area networks Wide area networks
  16. 16. http://improvec.blogspot.in/ 16Difference The main difference between the two is the way in whichthey are geographically distributed
  17. 17. http://improvec.blogspot.in/ 17Applications of Computer Network Access to Files and Folders on other Computers Use other devices that are connected to othercomputers. ex: printers To contact many on-line services
  18. 18. http://improvec.blogspot.in/ 18Applications of Computer Network contd.. News Groups Network Games Voice mail Video conferencing Fax machine Internet relay chat
  19. 19. http://improvec.blogspot.in/ 19Summary Introduction to networks Definition of Computer network Need for a Computer network Types of computer networks Applications
  20. 20. http://improvec.blogspot.in/ 20Frequently Asked Questions What is a computer network? Explain the purpose of a computer network What are the different types of computer networks? What are the applications of computer network?
  21. 21. http://improvec.blogspot.in/ 21QUIZ1. Interconnection of computer systems is calleda) Operating systemb) Computer Networkc) Distributed systemd) None
  22. 22. http://improvec.blogspot.in/ 222. Which of the following are computer Network?a) LANb) WANc) Both a and bd) NoneFor more details of networking visithttp://improve-networking.blogspot.in/

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