1. The Internet
Week 2

2. Cyberspace- Definitions
People using the new technology to communicate with one another
Person to person communication - that is many-to-many
The use of computer technology

3. Everyday Uses in Cyberspace
Word Processing, Document preparation
Telecommuting, Teleworking
Children’s games, Recreation

4. Everyday Uses of Cyberspace
1990’s until Today
Children’s school work, Education
Adult Remote Education at home
Family/Friends Communications, Correspondence
Reading News events, casual reading
Family Travel, Recreation
Family Records
Home Banking, Financial Management
Facebook, etc.

5. Everyday Uses of Cyberspace
In-store and other purchases
ATM, Debit card
Home Shopping
TV, on-line services, Smartphones
Food Preparation
multimedia, TV, On-line services

6. Everyday Uses of Cyberspace
Future (almost here)
Household Automated Tasks
Smart home
Smart appliances
Home robotics
Home information systems

7. The Internet Worldwide connection 84,000,000,000 webpages 4.1B users
TCP/IP

8. Internet History 1960’s - ARPA packet switching 1970’s - Universities
LAN
UNIX
Newsgroups

9. Internet History 1980’s - MILnet, NSFnet DNS
No longer only research oriented (business)
TCP/IP
reliable, efficient?, robust

10. Internet History 1990’s until Today WWW born Commercialization
Advertisements
Ordinary people publish
Smartphones
Video Streaming

11. Reason for Success? No central authority Inexpensive
Capabilities are popular
Easy to use

12. Impacts of WWW Opening of access to information
Reduction of delay for information
Evolution of hypertext

13. Metcalfe’s Law
The value of a network is proportional to the square of the number of its users

14. Original Uses
Remote Login
File Transfer
Research

15. The Basic Uses of the Net
Discussion groups
File transfer
Long distance computing
Research
Data/Image Transfer
General Communications

16. - Uses
Send messages
Work
Personal
MIME capabilities

17. E-Mail - Advantages No busy signal Always an answer
Reader can view at any time
Cost effective
Fast
Reliable

18. E-Mail - Advantages Facilitates teleworking
Promotes communication that would normally not take place due to costs

19. E-Mail - Disadvantages
Have to be networked to use it
Not 100% reliable
Who else is reading the mail?

20. Discussion Groups - Uses
Share ideas
Education
Spread beliefs to others

21. Discussion Groups - Disadvantages
Anonymity - Who is really there with you?
Subject matter digresses
Truth of information unconfirmed

22. Other Uses Banking Shopping Telemedicine Education
General source of “information”
Personal Connections

23. Advantages No need to get in a car Saves $
Exposure to things not available before
Reach more people

24. Disadvantages Privacy Secure transfers of information Hackers
Can’t use everywhere
Children and censorship
Illegal activity - piracy, gambling