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Technology Guide 4

Technology Guide 4 Telecommunication & Internet Agenda Telecommunication terminology Communication media Network architecture concepts Enterprise networking Internet Telecommunication Terminology Telecommunication Data communication Components Hardware Media Software Protocols

JasminFlorian
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Technology Guide 4

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  1. Technology Guide 4 Telecommunication & Internet

  2. Agenda • Telecommunication terminology • Communication media • Network architecture concepts • Enterprise networking • Internet

  3. Telecommunication Terminology • Telecommunication • Data communication • Components • Hardware • Media • Software • Protocols • Providers

  4. Telecommunication Terminology • Signals • Analog: amplitude & frequency • Digital • Modem • Multiplexer • Frequency division, time division, statistical time division, wavelength division • Front-end process • Concentrator

  5. Agenda • Telecommunication terminology • Communication media • Network architecture concepts • Enterprise networking • Internet

  6. Communication Media • Cable media • Wireless media

  7. Cable media • Types • Twisted-pair wire • Coaxial cable • Fiber optics • Pros & Cons

  8. Wireless media • Types • Microwave • Satellite • Geostationary earth orbit (22,300) • Medium earth orbit (6,000) • Low earth orbit (400 – 1,000) • Radio • Infrared • Pros & cons

  9. Wireless media • Applications • Cellular radio technology • Mobile computing • Personal communication system • Personal digital assistance

  10. Agenda • Telecommunication definition • Communication media • Network architecture concepts • Enterprise networking • Internet

  11. Network Architecture Concepts • Transmission characteristics • Protocols • Open system interconnection (OSI) • Interface • Topology • Types

  12. Transmission characteristics • Speed • Bits per second (bps) • Baud rate (Hertz) • Direction • Simplex • Half-duplex • Full-duplex • Mode • Asynchronous • Synchronous • Accuracy • Horizontal • Vertical • Cyclic redundancy checking

  13. Protocols • Definition • Rules & procedures for transmission • Protocol types • Token passing • Carrier sense multiple access/collision detection • Transmission control protocol/internet protocol (TCP/IP)

  14. Open system interconnection (OSI) • Physical layer • Data link layer • Network layer • Transport layer • Session layer • Presentation layer • Application layer

  15. Interface • Transmission interfaces • Parallel data transfer • Serial data transfer • Universal asynchronous receiver/transmitter • Network interfaces • Interface card • Routers • Bridges • Gateways

  16. Topology • Ring • Bus • Star • Web • Hybrid

  17. Types • LAN • Private branch exchange (PBX) • Centrex • MAN • WAN • VAN • Packet switching • Frame relay • Asynchronous transfer mode (ATM) • Integrated services digital network (ISDN) • Digital subscriber line (DSL) • Fiber distributed data interface • Virtual private network (VPN) • Backbone

  18. Agenda • Telecommunication terminology • Communication media • Network architecture concepts • Enterprise networking • Internet

  19. Enterprise Networking - Types • Client/server • Distributed presentation • Remote presentation • Distributed logic • Remote data management • Distributed data management • Peer-to-peer • Intranet • Extranet • Internet

  20. Enterprise NetworkingOpen Systems Goals • Connectivity • Portability • Interoperability • Scalability • Others?

  21. Agenda • Telecommunication terminology • Communication media • Network architecture concepts • Enterprise networking • Internet

  22. Internet • Internet kiosks • Protocols: TCP/IP • Telnet • Internet Service provider (ISP) • World wide web (Web) • Browser • Web site/web page

  23. Internet • Search engines or metasearch engines • Uniform resource locator (URL) • Hypertext transfer protocol (http) • Usages • Research • E-mail • Chat program • Newsgroup • Electronic bulletin boards (EBBs) • E-commerce

  24. Points to Remember • Telecommunication terminology Communication media • Network architecture concepts • Enterprise networking • Internet

  25. Discussion Questions • Why does an organization need a reliable network? • What are the general selection criteria for a network? • What kind networks are useful to an university such as CSUS? • What kind networks are needed by a company such as Intel?

  26. Assignment • Review technology guides 1-2 & 4 and chapters 1-5 • Read chapter 6 • Group assignment • Research paper

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