Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Second term-part 1


Published on

To Manuel! :)

Published in: Education, Business, Technology
  • Login to see the comments

  • Be the first to like this

Second term-part 1

  1. 1. Telecommunications System Components
  2. 2. Types of signals: Analog and Digital • Analog: – Continious waveforms – Passes through communications medium – Used for video, audi and voice communications • Digital: Discrete waveforms Transmits data coded into two discrete states as 1-bits or 0-bits Used för data communications
  3. 3. Methods of conversation• Analog to digital
  4. 4. Functions of a modem• Translates computers digital signal into analog and vice versa
  5. 5. Communications Channels• Wired transmission• Wireless transmission
  6. 6. Communications Processers and Software• Front-end processor• Concentrator• Controller• Multiplexer
  7. 7. Network topologies• Star network• Bus network• Ring network
  8. 8. Local Area Networks (LAN´s) &Wide Area Networks (WAN´s)
  9. 9. Network services and Broadband Technologies• Value-added networks (VAN´s)• Other network services
  10. 10. Electronic Commerce & Electronic Business Technologies• Electronic mail and groupware = E-mails and Groupware• Voice mail and fax• Teleconferencing• Dataconferencing• Videoconferencing• Digital information services, distance learning and E-learing• EDI = Electronic data Interchange •