Lesson plan

TCPware

TCPware is a third party layered product published by "Process Software LLC" of Framingham, Massachusetts to add TCP/IP capabilities to Digital Equipment Corporation's VMS operating system. In the early 1990s Digital Equipment Corporation had an internal policy favoring their own product, DECnet. Meanwhile, many VMS users in governments, large corporations and universities were discovering the "TCP/IP based" internet and required third party software to enable connectivity to it. TCPware was enhanced in subsequent releases. Version 2.2, in 1991, added support for Sybase database procucts using the standard VMS functions. It introduced remote procedure calls (RPCs) to support distributed computing. It also added tn3270 for IBM 3270 terminal emulation, and support for the Simple Network Management Protocol (SNMP). The current version is 6.1. Two features of the TCPware APIs, the "Telnet Library" and the "FTP Library", allow a relatively inexperienced programmer to use a high level language to write software which will connect across the internet. Quite a bit of legacy software now relies on these modules. TCPware's "Telnet Library" can be used for other protocol transfers like HTTP and SMTP. In the early 1990s, DEC produced its own version of UNIX called ULTRIX which supported TCP/IP.…

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Article summary

TCPware is a third party layered product published by "Process Software LLC" of Framingham, Massachusetts to add TCP/IP capabilities to Digital Equipment Corporation's VMS operating system. In the early 1990s Digital Equipment Corporation had an internal policy favoring their own product, DECnet. Meanwhile, many VMS users in governments, large corporations and universities were discovering the "TCP/IP based" internet and required third party software to enable connectivity to it. TCPware was enhanced in subsequent releases. Version 2.2, in 1991, added support for Sybase database procucts using the standard VMS functions. It introduced remote procedure calls (RPCs) to support distributed computing. It also added tn3270 for IBM 3270 terminal emulation, and support for the Simple Network Management Protocol (SNMP). The current version is 6.1. Two features of the TCPware APIs, the "Telnet Library" and the "FTP Library", allow a relatively inexperienced programmer to use a high level language to write software which will connect across the internet. Quite a bit of legacy software now relies on these modules. TCPware's "Telnet Library" can be used for other protocol transfers like HTTP and SMTP. In the early 1990s, DEC produced its own version of UNIX called ULTRIX which supported TCP/IP.…

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

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Key claims and bibliography are generated from the same tracked claims and sources as the article page.