INFS2052
Internet and Intranet Information Systems
Lecture 1 - Introduction
Administration
Lecturers:Dr. Ramesh Sankaranarayana and Dr. Leone Dunn
room CSIT N220 and room N244
phone 4281 and ????
email infs2052@iwaki
Classes:
20 lectures
Tuesday 11am Manning Clark Theatre 3
Friday 9am Manning Clark Theatre 2
5 lab/tutorials in odd weeks 3,5,7,9,11
Register your lab times using ATLES now!
Topics:
- Introduction to computer networks, open systems.
- Access to remote information
- Mobile code and active content
- Openness and Standards
Texts and other resources
Unit Web site: http://cs.anu.edu.au/Student/infs3056
Texts/references no prescribed text
Tanenbaum, Computer Networks 3rd edition
Garfinkel & Spafford, Web Security & Commerce
Stallings, Data and Computer Communications
Internet and Intranet Information Systems
What is this unit about?
the technology behind Information Networks:
interworking networked applications
- the techniques that allow networked computer systems and applications
from many different sources to work together;
and the techniques that allow information providers and users to have confidence
in the security of their communications.
Reading:
Tanenbaum chapter 1 up to section 1.5 (inclusive)
Computer communications networks
Electronic communication between computers is by:
shared medium (e.g. ``ethernet'') suitable for LANs
- copper - unshielded twisted pair/telephone cable
- coaxial cable - thin or thick
fibre-optic cable
- short-range radio
- long-range radio
- infra-red
modem over POTS (ordinary telephone service)
or mobile cellular phone service
leased lines
dedicated microwave links
public carriers
- commercial service offerings are changing rapidly
PSDN - public switched data network
PSTN - public switched telephone network
internetworks through gateways
and by combinations of all of these.
Communication between computers of all sizes
- from palmtops to supercomputers.
Benefits of Computer Communications
speed
low cost
flexibility
distributed data
distributed processing
very wide access
Why Open Systems?
flexibility across many different computer systems
independence from vendors - non-proprietary
global coverage
open to all parties who agree to communicate
cost effective communications
integration with other telecomms services
Open Systems- Open Systems Interconnect (OSI)
and
Internet protocols- TCP/IP
and
open distributed object-oriented middleware- CORBA
and
etc. etc.
Phenomenon
growth
growth
growth
growth
Some common applications
electronic mail - email
electronic news - Usenet, bulletin boards
World Wide Web - WWW
file transfer and remote access
electronic information services
distributed databases
distributed work e.g. design, conferencing
Electronic Document Interchange (EDI)
retail applications: books, CDs, software, ...
EFTPOS Electronic Funds Transfer at Point of Sale
validation of credit/debit cards
barcode scans
ATM - automatic teller machine
electronic banking
government form completion and submission
Last modified: Tue Mar 30 11:19:02 EST 1999
Queries to : infs2052@iwaki.anu.edu.au