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Internet History
and Growth
Diff Between Internet , Intranet
And Extranet
What Is the Internet?
 A network of networks, joining many government,
university and private computers together and
providing an infrastructure for the use of E-mail,
bulletin boards, file archives, hypertext documents,
databases and other computational resources
 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.
What is the Internet?
 The largest network of networks in the world.
 Uses TCP/IP protocols and packet switching .
 Runs on any communications substrate.
 TCP/IP, Transmission Control Protocol/Internet
Protocol, is a suite of communications protocols used
to interconnect network devices on the
Internet.TCP/IP implements layers of protocol stacks,
and each layer provides a well-defined network
services to the upper layer protocol.
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 all together to use TCP/IP for its messaging
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
Intranets and Extranets
 Intranet
 Internal corporate network built using Internet and World
Wide Web standards and products
 Slashes the need for paper
 Provides employees with an easy and intuitive approach
to access information that was previously difficult to
obtain
Intranets and Extranets
(continued)
 Extranet: a network based on Web technologies that
links selected resources of a company’s intranet with
its customers, suppliers, or other business partners
 Virtual private network (VPN): a secure connection
between two points across the Internet
 Tunneling: the process by which VPNs transfer
information by encapsulating traffic in IP packets over
the Internet
INTERNET HISTORY INTRANET EXTRANET
INTERNET HISTORY INTRANET EXTRANET

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INTERNET HISTORY INTRANET EXTRANET

  • 1.
  • 2. Internet History and Growth Diff Between Internet , Intranet And Extranet
  • 3. What Is the Internet?  A network of networks, joining many government, university and private computers together and providing an infrastructure for the use of E-mail, bulletin boards, file archives, hypertext documents, databases and other computational resources  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.
  • 4. What is the Internet?  The largest network of networks in the world.  Uses TCP/IP protocols and packet switching .  Runs on any communications substrate.  TCP/IP, Transmission Control Protocol/Internet Protocol, is a suite of communications protocols used to interconnect network devices on the Internet.TCP/IP implements layers of protocol stacks, and each layer provides a well-defined network services to the upper layer protocol.
  • 5. 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 all together to use TCP/IP for its messaging
  • 6. 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
  • 7. Intranets and Extranets  Intranet  Internal corporate network built using Internet and World Wide Web standards and products  Slashes the need for paper  Provides employees with an easy and intuitive approach to access information that was previously difficult to obtain
  • 8. Intranets and Extranets (continued)  Extranet: a network based on Web technologies that links selected resources of a company’s intranet with its customers, suppliers, or other business partners  Virtual private network (VPN): a secure connection between two points across the Internet  Tunneling: the process by which VPNs transfer information by encapsulating traffic in IP packets over the Internet