Internetworking

late 1970s

• ARPANET passed from research net to operational net for military
• concept of internetwork (internet)
  • joining LANs & WANs
  • resolve incompatibilities among constituents

early 1980s

• emergence of ARPANET as an internetwork (internet)
  • WAN backbone
  • connected LANs
  • concept of single software package (suite) that ran on all networks to support basic services (TCP/IP Internet Protocol Suite)
    • open system concept
    • publication of specifications and research results
• use of the term, Internet, to refer to ARPANET
• TCP/IP incorporated into UNIX, facilitating computer science research
• NSF commits to CSNET, linking computer science research community

1982

• TCP/IP prototype in place
  • 10's of computers connected
  • academic and industrial researchers, military