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Understanding Communication Networks: Client/Server vs. Peer-to-Peer

This document provides an in-depth analysis of basic components in communication networks, focusing on the Client/Server and Peer-to-Peer models. It covers essential topics such as compatibility, cost, features, and data compression techniques like Run-length encoding and Huffman encoding. The text explains the OSI model layers, starting from the Physical layer to the Application layer, highlighting their functions. Additionally, it discusses synchronization methods and the evolution of communication networks, emphasizing user-level networking and the significance of standards in fostering effective communication.

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Understanding Communication Networks: Client/Server vs. Peer-to-Peer

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Presentation Transcript

  1. Basic components IV (06.523) Basic components of communication networks IV

  2. Client/Server versus Peer to Peer • Compatibility • Cost • Features • Organisation

  3. Data Compression • Run-length encoding • Code book compression • Huffmann Encoding • Multimedia compression

  4. OSI network layers • Physical layer (voltages, timing factors, duplex) • Data link layer (makes transmission error free) • Network layer (addressing and routing at a hardware level) • Transport layer (controls connections, packet routing at a software level) • Session layer (streams interface) • Presentation layer (makes the interface look tidy) • Application layer (http, etc.)

  5. Synchronisation • Bit synchronisation • Byte synchronisation • Frame/Packet synchronisation

  6. Overview of Basic Components • Current and future trends • User level networking • Basic components in communication networks • Difference between simplex and duplex, serial and parallel • Standards and standardisation organisations

  7. Communication networks (current) • Allow the transfer of files between computers • Allow the sharing of peripherals • Allow sending and receiving of email

  8. Communication networks (future) • Cooperative work environment (CVS, GroupWise) • More communication - voice, etc • No need to print • Same environment wherever you sit

  9. Basic components • Server • Client • Interface at four different levels

  10. Networking standards • Common standards • Standardising bodies • Importance of standards to you

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