Internet History Slide Set
Slide 1
Slide Title: ARPANET, Internet, Truth, Justice, Freedom of Speech, ...
Slide Body: (empty)
Slide 2
Slide Title: When did Julius Frontinus say...
Slide Body:
“Inventions reached their limit long ago, and I see no hope for further development.”
Slide 3
Slide Title: When did Julius Frontinus say...
Slide Body:
“Inventions reached their limit long ago, and I see no hope for further development.”
First century, A.D.
Slide 4
Slide Title: (empty)
Slide Body:
“An amazing invention – but who would want to use one?”
-- President Rutherford B. Hayes after making a telephone call from Washington, D.C. to Philadelphia in 1876
Slide 5
Slide Title: (empty)
Slide Body:
“I think there is a world market for maybe five computers.”
-- Thomas Watson, chairman of IBM, 1963
Slide 6
Slide Title: (empty)
Slide Body:
“There is no reason anyone would want a computer in their home.”
-- Ken Olsen, President, Chairman, and Founder of Digital Equipment Corporation, 1977
Slide 7
Slide Title: Internet
Slide Body:
-
A global village of computer networks, a community of users, a collection of shared resources, with broad culturalal effects.
- Grown for nothing to a population of ~~ a billion users in less than 40 years.
Slide 8
Slide Title: ARPANET
Slide Body:
- 1960's ... Cold War. DoD wants national network connecting all government and research computers which will not be brought down by point-of-failure attacks.
Slide 9
Slide Title: ARPANET to Internet
Slide Body:
- Addresses
- Packets
- Traffic controllers
Slide 10
Slide Title: Internet Protocol Rules
Slide Body:
- Each computer gets a unique address (dotted quad, e.g. 129.82.45.68)
- Each message broken into packets of about 1500 bytes
- Each packet addressed with source and destination IP address, and includes packet number (n of m)
- As packet arrives at a host computer, it reads the destination address and chooses best next path
- When packet arrives, destination computer uses Transmission Control Protocol (TCP) to reassemble; may request re-transmit of missing packet(s)
Slide 11
Slide Title: Labor Day, 1969
Slide Body:
- Four computers at University of California Santa Barbara, University of Utah, University of California Los Angeles, and Stanford Research Institute were connected ...
- And the Internet (originally ARPANET) was born.
- And it grew...
Slide 12
Slide Title: Growth...
Slide Body:
- 4 hosts in September, 1969
- 23 in April, 1971
- 62 in June, 1974
- >1000 in 1984
- Then more than doubled every year
- Increasing >30% per month, with number of hosts >doubling each year
Slide 13
Slide Title: Consequences
Slide Body:
- Unanticipated dramatic growth
- Distributed, no central computer
- Easy to join
- Distance irrelevant
- Became world's fastest and cheapest communication...
- Appealing to millions of people
Slide 14
Slide Title: Recently estimated...
Slide Body:
- More than a billion people with Internet access
- ... on more than 100 million networks
- ... in more than 150 countries
- ... transferring over 2000 trillion characters a month
Slide 15
Slide Title: Information
Slide Body:
- In October, 2004, Google showed it was searching 4,285,199,774 web pages (no longer shown).
- What are some of the implications about this amount of information?