1. Cos 125
Day 1
5/14/2019
© Tony Gauvin, UMFK 2004

2. Agenda Roll Call Introduction WebCT Overview Syllabus Review
Class Web Site
Understanding the Internet’s Underlying Architecture
What is the Internet?
How Computers Networks Send Data Across the Internet.
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© Tony Gauvin, UMFK 2004

3. INSTRUCTOR Tony Gauvin, Assistant Professor of E-Commerce
Contact info
216 Nadeau
(207) or ext 7519
WebCT (Tony Gauvin COS 125)
5/14/2019
© Tony Gauvin, UMFK 2004

4. Instructional Philosophy
Out-Come based education
Would rather discuss than lecture
Requires student preparation
Hate grading assignments
Especially LATE assignments
Use class interaction, assignments, quizzes and projects to determine if outcomes are met.
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© Tony Gauvin, UMFK 2004

5. COS 125 Survival Primer Check WebCT Often
Read Material BEFORE the class discussion
Check WebCT Often
Use the additional resources identified in syllabus
ASK questions about what you didn’t understand in readings
DON’T do assignments and projects at last minute.
REVEIW lectures and notes
Seek HELP if you are having difficulties
OFFER feedback and suggestions to the instructor in a constructive manner
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© Tony Gauvin, UMFK 2004

6. Computer Accounts Computer login MSDN Academic Alliance Access Cards
Sys admin
Pete Cyr (x7547) or Art Drolet (x7809)
Applications
MSDN Academic Alliance
Free Stuff
See Dr Ray Albert
Access Cards
$10 deposit
See Lisa Fournier
5/14/2019
© Tony Gauvin, UMFK 2004

7. WebCT http://webct.umfk.maine.edu Login
First name. Last Name
John Doe  John.Doe
Initial password is webct
Help with WebCT available from Blake Library staff
All quizzes and assignments will be administered from WebCT
Class website
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© Tony Gauvin, UMFK 2004

8. Syllabus review Requirements Grading Course outline Special Notes
Subject to change
5/14/2019
© Tony Gauvin, UMFK 2004

9. What is the Internet? How was the Internet built? How is it organized?
Who runs the Internet?
Who pays for the Internet?
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© Tony Gauvin, UMFK 2004

10. Timeline for the Internet
1961 MIT Grad student Leonard Kleinrock published on “packet switching”
1966 ARPANET
1970 NCP developed
1971 First
Hosts
1974 TCP/IP developed by Kahn and Cerf
1976 UUCP
1979 Usenet
1983 TCP/IP replaces NCP
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© Tony Gauvin, UMFK 2004

11. Timeline Continued
1983 Internet Activities Board oversees technology development
hosts
1984 DNS
hosts
1984 JUNET, BITNET, CSNET
1986 NSFNET Super Computers
1988 Morris worm (1st virus!)
1988 CERT formed
,000 hosts
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© Tony Gauvin, UMFK 2004

12. Timeline Continued 1990 ARPANET retired
1991 U of Minnesota develop Gopher
1991 WWW released at CERN
1992 MBONE
1992 ISOC formed
,000,000 hosts
1993 Mosaic developed by Marc Andresen and Eric Bina
1993 Whitehouse goes on-line
1993 InterNIC
1993 2,000,000 hosts
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© Tony Gauvin, UMFK 2004

13. Timeline Continued
1994 The Rolling Stones broadcast the Voodoo Lounge Tour over MBone
1995 vBNS (start of the commercial Internet)
1995 Sun Microsystems invents JAVA
,000,000 hosts
1996 Telecomincations Act
1997 DNS Hack (successfully)
,000,000 hosts
2002 DNS system hacked again (unsuccessfully)
2003 approaching 200,000,000 hosts
5/14/2019
© Tony Gauvin, UMFK 2004

14. Who runs the Internet? No Centralized Management
Thousands of individual networks that cooperate
Rules for cooperation are the RFC’s
The Internet Society is the main organizing body
Internet Architecture Board
Internet Engineering Task Force
World Wide Web Consortium
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© Tony Gauvin, UMFK 2004

15. Organzational Chart
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© Tony Gauvin, UMFK 2004

16. Other Internet Players
InterNIC
Registers names and addresses
Registrars
Private companies that do the same as InterNIC
ISPs
Internet Service Providers
Networks providers
Local
Regional
Backbone
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© Tony Gauvin, UMFK 2004

17. How the Computers Networks work
Computers are connected to LANS
Local Area Networks
Hubs
Bridges
Switches
Repeaters
Gateways
Data is sent on packets using TCP/IP
LANS are Connected by routers to WANS
Wide Area Networks are owned by Private Telecommunications Companies
Everything eventually connects to the Internet Backbones at NAP (Network access points)
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© Tony Gauvin, UMFK 2004

18. Internet Webserver User PC Internet Backbone (Multiple Carriers)
Router
ISP
ISP
Internet
Service Provider
Internet
Service Provider
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© Tony Gauvin, UMFK 2004

19. Internet Connections
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© Tony Gauvin, UMFK 2004

20. Networking Terms T1, T3, 56K DSL ISDN LAN Types Leased lines
Digital Subscriber lines
ISDN
Integrated Services digital Network
LAN Types
Ethernet
Token ring
Wireless
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© Tony Gauvin, UMFK 2004

21. Perceptions What is the Internet?
What significant changes in the Internet do you foresee within the next five years?
How does the Internet benefit you?
How does the Internet benefit society?
Are there negative aspects of the Internet?
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© Tony Gauvin, UMFK 2004

22. For Next Class Read Chap 1-6 in HITW Check out all parts of WebCT
Make sure you have read and understand Course Syllabus.
Assignment #1 will be assigned next class
5/14/2019
© Tony Gauvin, UMFK 2004