1. Winners of Turing Award 2004 Presenter: Yung-Hsing Peng Date: 2005.05.06

2. Introduction to Turing Award Considered the "Nobel Prize of Computing“. Named for British mathematician Alan M. Turing. First awarded in 1966 $100,000 prize

3. Developer of TCP/IP Vinton G. CerfRobert E. Kahn They developed TCP/IP protocol from 1973 to 1978. They won Turing Award because TCP/IP becomes a must in network.

4. In 1973 Cerf joined Kahn in a project to link three independent networks into an integrated "network of networks.“ They realized that a "gateway" (now known as a router) was needed between each network to accommodate different interfaces and route packets of data. This meant designating host computers on a global Internet, for which they introduced the notion of an Internet Protocol (IP) address.

5. In May 1974 They published a paper describing a new method of communication called transmission-control protocol (TCP) to route messages or packets of data. Like an envelope containing a letter, TCP broke serial streams of information into pieces, enclosed these pieces in envelopes called "datagrams" marked with standardized "to and from" addresses, and passed them through the underlying network to deliver them to host computers. Only the host computers would "open" the envelope and read the contents.

6. In 1978 Cerf and several colleagues split the original protocol into two parts, with TCP ("letters") responsible for controlling and tracking the flow of data packets, and the Internet Protocol (IP, "envelopes") responsible for addressing and forwarding individual packets. The new protocol, TCP/IP, has since become the standard for all Internet communications.

7. TCP/IP and Internet Cerf and Kahn developed TCP/IP, a format and procedure for transmitting data that enables computers in diverse environments to communicate with each other. This computer networking protocol, widely used in information technology for a variety of applications, allows networks to be joined into a network of networks now known as the Internet.