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Hugh Melvin, Dept. IT, NUI,G
Computer Communications
Hugh Melvin, Dept. of IT, NUI,GTel. 091-524411 Ext. 3716
Email: [email protected] Resources: www.it.nuigalway.ie/melvin
Hugh Melvin, Dept. IT, NUI,G
Course Objectives
• Deliver solid technical knowledge of basicsof Computer Communications
• Focus on leading edge technologies &trends
• Practical Approach– Emphasis on implementation– Case Studies
Hugh Melvin, Dept. IT, NUI,G
Computer Communications
• Increasingly networked world• Broad concept
– LAN– Internet– Process Control
Hugh Melvin, Dept. IT, NUI,G
Hugh Melvin, Dept. IT, NUI,G Hugh Melvin, Dept. IT, NUI,G
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AS101 AS133AS112 AS131AS017AS013
Boiler BMSTurbine
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R30
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AS231Unit Alarms System
PG750Maintenance
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OS254OperationsComputer
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VDU 2
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Operator’sKeyboard
MEC-RTData Storage Unit
Programmers VDU & Keyboard
VDU 2
VDU 3
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MEC-RTData Storage Unit
Programming RoomPrinter
Fault Log PrinterControl Room
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VAXMaintenance Management
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Local Printer
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5 1/4”FDDStorage Unit
Alarms Printer
Annunciator
Local Terminals
CPU
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VDU 1
VDU 1
VDU S\E’sOffice
VDU Prog. Room
Tape DriveStorage Unit
Operators Keyboard 1
Operators Keyboard 2
S\E’s Keyboard 1
Programmers Keyboard
Annunciator
Printer 1
Printer 2
Printer Prog. Room
Teleperm System Overview
CS 275 Bus Bus 0 Bus 1
HW Analog InputsHW Binary Inputs
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Hugh Melvin, Dept. IT, NUI,G
Communications
• Fundamental Requirements• Network Reference Models
– OSI , ATM, TCP-IP
Hybrid OSI Model• Physical Layer Issues
– Transmission Media– Bit level encoding
• Link Layer Issues– Error Detection/Correction– Reliability– Flow Control
Hugh Melvin, Dept. IT, NUI,G
Communications
• Network Layer Issues– Routing– Cost– Compatibility
• Transport Layer Issues– Connection Management– Quality of Service (QoS) at User level
• Application Layer Issues– User Interface– Ease-of-Use (HCI)– Systems Integration
Hugh Melvin, Dept. IT, NUI,G
Communications
• Security Issues– Operate at various layers– Cryptography
• Public & Secret Key– Firewalls
• Hackers• Viruses
Hugh Melvin, Dept. IT, NUI,G
Communications
Case Studies• LAN (Local Area Network) Technology
– Ethernet– Hi Speed & Wireless Solutions
• POTS (Plain Old Telephone System)– Basic Operation– Modem Technology– Future Direction
• ISDN, ADSL
• Internet– Core Protocols– WWW
Hugh Melvin, Dept. IT, NUI,G
Communications
Case Studies• Wireless Technologies
– Wireless LAN– Wireless PAN (Bluetooth)– GSM (Present 2nd Generation)– WAP (Wireless Application Protocol)– 2.5G & 3rd Generation Mobile (3G)
Hugh Melvin, Dept. IT, NUI,G
Assessment• Mid Term Assignment
– Essay– MIT : possible link with other modules
• Practical Assignments• Summer Exam
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Hugh Melvin, Dept. IT, NUI,G
Support MaterialCore Texts• Communications
– Computer Networks, 3rd Ed.,Andrew S. Tanenbaum, PrenticeHall, 1996.
– Also:– Data & Computer Communications, 6th Ed.,William Stallings,
Prentice Hall– Distributed Systems & Networks, William Buchanan, McGraw Hill– Introduction to Data Communications and Networking, Behrouz
& Forouzan, McGraw Hill
Hugh Melvin, Dept. IT, NUI,G
Support Material
• Web Resources– various
• Technical Papers, Reviews– RFC– IEEE– ACM– etc.
