Internet History and Growth
Доклад, 27 Марта 2013, автор: пользователь скрыл имя
Краткое описание
The Telegraph
Invented in the 1840s.
Signals sent over wires that were established over vast distances
Used extensively by the U.S. Government during the American Civil War, 1861 - 1865
Morse Code was dots and dashes, or short signals and long signals
The electronic signal standard of +/- 15 v. is still used in network interface cards today
Содержание
Internet History
Internet Evolution
Internet grown UP
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Internet History and Growth.ppt
— 427.00 Кб (Скачать документ)Internet History and Growth
Agenda
- Internet History
- Internet Evolution
- Internet grown UP
What Was the
“Victorian Internet”?
What Was the
“Victorian Internet”
- The Telegraph
- Invented in the 1840s.
- Signals sent over wires that were established over vast distances
- Used extensively by the U.S. Government during the American Civil War, 1861 - 1865
- Morse Code was dots and dashes, or short signals and long signals
- The electronic signal standard of +/- 15 v. is still used in network interface cards today.
What Is the Internet?
- A network of networks, joining
many government, university a nd private computers together and providing an infrastructur e for the use of E-mail, bulle tin boards, file archives, hyp ertext documents, databases an d other computational resource s - The vast collection of computer networks which form and act as a single huge network for transport of data and messages across distances which can be anywhere from the same office to anywhere in the world.
- The largest network of network
s in the world. - Uses TCP/IP protocols and packet switching .
- Runs on any communications substrate.
What is the Internet?
From Dr. Vinton Cerf,
Co-Creator of TCP/IP
Brief History of the Internet
- 1968 - DARPA (Defense Advanced Research Projects Agency) contracts with BBN (Bolt, Beranek & Newman) to create ARPAnet
- 1970 - First five nodes:
- UCLA
- Stanford
- UC Santa Barbara
- U of Utah, and
- BBN
- 1974 - TCP specification by Vint Cerf
- 1984 – On January 1, the Internet with its 1000 hosts converts en masse to using TCP/IP for its messaging
*** Internet History ***
A Brief Summary of the
Evolution of the Internet
1945
1995
Memex
Conceived
1945
WWW
Created
1989
Mosaic
Created
1993
A
Mathematical
Theory of
Communication
1948
Packet
Switching
Invented
1964
Silicon
Chip
1958
First Vast
Computer
Network
Envisioned
1962
ARPANET
1969
TCP/IP
Created
1972
Internet
Named
and
Goes
TCP/IP
1984
Hypertext
Invented
1965
Age of
eCommerce
Begins
1995
The Creation of the Internet
- The creation of the Internet s
olved the following challenges : - Basically inventing digital networking as we know it
- Survivability of an infrastructure to send / receive high-speed electronic messages
- Reliability of computer messaging
Internet grown UP
Since the mid-1990s the
Questions?
6
5