Содержание
- 2. Communications Communications The message (data and information) is communicated via the signal The transmission medium “carries”
- 3. -The transmission of data from one computer to another, or from one device to another. A
- 4. Telecommunications Telecommunications The electronic transmission of signals for communications, including such means as: Telephone Radio Television
- 5. Communications and Telecommunications In human speech, the sender transmits a signal through the transmission medium of
- 6. Chapter 6 Telecommunications and Networks
- 7. Data Communications Data communications A specialized subset of telecommunications that refers to the electronic collection, processing,
- 8. Computer Network Computer network… The communications media, devices, and software needed to connect two or more
- 9. Chapter 6 Telecommunications and Networks Telecommunications-Based Services
- 10. Chapter 6 Telecommunications and Networks Internet Networking Technologies Internet networking technologies are being used as technology
- 11. Chapter 6 Telecommunications and Networks Open Systems Open systems use common standards for hardware, software, applications,
- 12. Chapter 6 Telecommunications and Networks Digital Network Technologies Telecommunications are being revolutionized by switch from analog
- 13. Chapter 6 Telecommunications and Networks Telecommunications Network Components Terminals Any input/output device that uses networks to
- 14. Chapter 6 Telecommunications and Networks Telecommunications Network Components Telecommunications control software Controls telecommunications activities Manages the
- 15. Chapter 6 Telecommunications and Networks Network Component Alternatives
- 16. Chapter 6 Telecommunications and Networks Types of Communications Networks Primary types of communications networks Wide Area
- 17. Chapter 6 Telecommunications and Networks Wide Area Network (WAN) Telecommunication network that covers a large geographic
- 18. Chapter 6 Telecommunications and Networks Local Area Network (LAN) Connects computers within a limited physical area,
- 19. Chapter 6 Telecommunications and Networks Virtual Private Networks (VPN) Used to establish secure intranets and extranets
- 20. Chapter 6 Telecommunications and Networks Client/Server Networks Clients End user personal computers or networked computers Servers
- 21. Chapter 6 Telecommunications and Networks Client/Server Network
- 22. Chapter 6 Telecommunications and Networks Peer-to-Peer Networks Central Server Architecture P2P file-sharing software connects all PCs
- 23. Chapter 6 Telecommunications and Networks Telecommunications Media Twisted-Pair Wire Ordinary telephone wire Copper wire is twisted
- 24. Chapter 6 Telecommunications and Networks Telecommunications Processors Modems The most common type of communications processor Converts
- 25. Chapter 6 Telecommunications and Networks Inter-Network Processors Switch… makes connections between telecommunications circuits in a network
- 26. Chapter 6 Telecommunications and Networks Network Topologies Topology - The structure of a network Star Network
- 27. Chapter 6 Telecommunications and Networks Network Topologies
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