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FTP Software
FTP Software was a software company incorporated in 1986 by James van Bokkelen, John Romkey (co-author of the MIT PC/IP package), Nancy Connor, Roxanne van Bokkelen (née Ritchie), Dave Bridgham and several other founding shareholders. Their main product was PC/TCP, a full-featured, standards-compliant TCP/IP package for DOS.
== Origins ==
The core open-source software was developed at MIT starting in 1982 as the PC/IP project, a project to make PCs into first-class citizens on TCP/IP networks. This project began as a Telnet implemented by Louis J. Konopelski〔Louis J. Konopelski, "Implementing Internet Remote Login on a Personal Computer", bachelor's thesis, MIT, December 1982. Also available as ( MIT-LCS-TM-233 )〕 under the supervision of Jerome Saltzer. Later contributors to the PC/IP project included John Romkey, David Bridgham, David D. Clark, and Donald W. Gillies.
FTP Software was the first of many companies to name themselves after an Internet protocol. At the time the company was founded,
the PC/IP software package was already being sold by Wollongong, 3Com and others, and so some of the inventors of PC/IP decided to exploit their own product. The original PC/IP package contained a specialized TCP used only by its Telnet client, written by David D. Clark. It also contained ping, fortune, time, and a TFTP protocol client. After Donald W. Gillies produced a full-function multi-connection TCP and compatible SMTP for his bachelor's thesis, a mail proxy,〔Donald W. Gillies, "Improved network security with a trusted email relay", bachelor's thesis, MIT, June 1984〕 it became possible to offer an FTP implementation - which requires 2 concurrent TCPs. This software, known as "ntcp" in the source tree, could support 7 connections on a 128KB IBM PC-XT, and could interoperate with 10 different operating systems.〔Donald W. Gillies, personal communication to John Romkey, 1993〕 The multi-connection TCP languished in the source tree for two years before the FTP founders chose to make it the core of FTP Software, setting the company apart from the other competitors in this space, which were not actively improving PC/IP and were not willing to implement the FTP protocol based upon "ntcp".
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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