INTERNET HISTORY INTRANET EXTRANET
- 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