From aca at cs.utexas.edu Thu Oct 31 17:46:26 2002 From: aca at cs.utexas.edu (Adriana C. Arrington) Date: Thu, 31 Oct 2002 19:46:26 -0600 (CST) Subject: [ih] Telnet's NVT Message-ID: Hello, My name is Adriana Arrington and I am working with Chris Edmondson-Yurkanan in reseaching the technical history of Telnet for the THINK Protocols project. At this time, I am reading about the development of the Network Virtual Terminal (NVT). The first mention of the NVT was in RFC 137, as far as I can tell. How and when did it actually first appear as a solution to the heterogeneous terminal problem? How much of the NVT concept is based on the proposed but never used Decode-Encode Language (DEL) and Network Interface Language (NIL)? The Data Reconstruction Service (DRS) transforms data from one form to another instead of causing data to conform to a known standard, as in the case of the NVT. What happened to this manner of solving the incompatible data problem? Did Telnet, and specifically the NVT, solve this problem better? What ever happened to DRS? My main sources for NVT and these related topics have been the RFCs (of course), 1970 and 1972 SJCC papers and "An Experimental Service for Adaptable Data Reconfiguration" from the IEEE Transactions on Communications (June 1972). Are there any other sources for these topics (or any Telnet topic in genaral) that I should use? Thanks, Adriana Arrington mailto:aca at cs.utexas.edu mailto:a_arrington at mail.utexas.edu http://www.cs.utexas.edu/~aca