Principles of computer architecture miles murdocca and vincent heuring chapter 9 communication
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Principles of Computer Architecture Miles Murdocca and Vincent Heuring Chapter 9: Communication. Chapter Contents. 9.1 Modems 9.2 Transmission Media 9.3 Network Architecture: Local Area Networks 9.4 Communication Errors and Error Correcting Codes 9.5 Network Architecture: The Internet

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Principles of Computer Architecture Miles Murdocca and Vincent Heuring Chapter 9: Communication

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Principles of computer architecture miles murdocca and vincent heuring chapter 9 communication

Principles of Computer ArchitectureMiles Murdocca and Vincent HeuringChapter 9: Communication


Chapter contents

Chapter Contents

  • 9.1 Modems

  • 9.2 Transmission Media

  • 9.3 Network Architecture: Local Area Networks

  • 9.4 Communication Errors and Error Correcting Codes

  • 9.5 Network Architecture: The Internet

  • 9.6 Case Study: Asynchronous Transfer Mode


Modem communication

Modem Communication

  • •Communication over a telephone line with modems:


Modulation schemes

Modulation Schemes

  • •Three common forms of modulation:


Pulse code modulation

Pulse Code Modulation

  • •Conversion of an analog signal into a PCM binary sequence:


Ideal vs transmitted waves

Ideal vs. Transmitted Waves


Transmission media

Transmission Media

  • •Transmisson media. (a) Two-wire open lines; (b) twisted-pair lines; (c) coaxial cable; (d) optical fiber; (e)satellites.


The seven layers of the osi model

The Seven Layers of the OSI Model


A few network topologies

A Few Network Topologies

  • •(a) Bus; (b) ring; and (c) star network topologies.


Parity

Parity

  • •Even parity bits are assigned to a few ASCII characters:


Check bits

Check Bits

  • •Check bits for a single error correcting ASCII code:


Sec coded a

SEC coded ‘a’

  • •Format for a single error correcting ASCII code:


Sec coded d

SEC Coded ‘d’

  • •Parity computation for an ASCII character in an SEC code:


3 bit sec hypercube

3-Bit SEC Hypercube

  • •Hamming distance relationships among three-bit codewords. Valid codewords are 000 and 111. The remaining codewords represent errors.


Lrc and vrc checking

LRC and VRC Checking

  • •Combined LRC and VRC checking. Checksum bits form even parity for each column.


Cyclic redundancy checking

Cyclic Redundancy Checking


Internet protocol stack

Internet Protocol Stack

  • •Layering in the TCP/IP protocol suite:


Ipv4 address classes

IPv4 Address Classes


Encapsulation

Encapsulation

  • •Encapsulation in the TCP/IP protocol suite:


Hub vs router vs switch

Hub vs. Router vs. Switch

  • •Configurations shown for (a) a hub; (b) a router; and (c) a switch.


Self routing switch

Self-Routing Switch

  • •A 4´4 self-routing switch based on the bubblesort algorithm:


Tdm vs atm

TDM vs. ATM

  • •(a) Time division multiplexing vs. (b) asynchronous transfer mode.


Format of an atm packet

Format of an ATM Packet

  • •Format of an ATM packet. (a) User-to-network interface (UNI) format; and (b) network-to-network interface (NNI) format.


Simple atm network

Simple ATM Network


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