Raymond Tomlinson

In 1971, Raymond Tomlinson was a developer of the TENEX time-sharing system, popular among computer science departments attached to the fledgling ARPANET, when he pioneered the network messaging system known today as email. Many aspects of his first email persist today-most notably his choice of the "@" symbol to separate user and computer names. He also made early contributions to protocols that are the basis for Internet communication-the three-way-handshake of the TCP protocol has its roots in his 'Selecting Sequence Numbers' paper. A Senior Member of the IEEE, Mr. Tomlinson has received many awards including induction into the Rensselaer Polytechnic Institute Alumni Hall of Fame. He is principle engineer at Bolt, Beranek and Newman in Cambridge, Massachusetts, where he has been employed since 1967.

David H. Crocker has been a vital contributor to email standards development since the early 1970s. The author of more than 45 Requests for Comments (RFC), his work includes RFC 733-the first standard for Internet email-and its revision, RFC 822, which remains the core
reference for Internet mail formatting. He also has played a major role in the development of standards for MIME file attachments, Internet facsimile and Internet EDI, as well as contributing to work on network management, domain name service, and transport protocol service
optimizations. Active in a number of influential standards groups, Mr. Crocker also was an architect of mail systems including OSI's X.400 and MCI Mail. Since 1991, he has been a principal at Brandenburg Internet Working.
A Senior Member of the IEEE, Mr. Crocker also is a member of the Association of Computing Machinery, the Internet Society and the Independent Computer Consultants Association.