KA9Q
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KA9Q, also called KA9Q NOS or simply NOS, was a popular early implementation of TCP-IP and associated protocols for amateur packet radio systems and smaller personal computers connected via serial lines. It was named after the callsign of Phil Karn, a radio ham who first wrote it for a CP/M system and then ported it to DOS on the IBM PC when DOS was still the standard PC operating system.
KA9Q was later maintained by Anthony Frost <vulch@kernow.demon.co.uk> (callsign G8UDV) and Adam Goodfellow <tcpip2@comptech.demon.co.uk>. It was ported to the Acorn Archimedes by Jonathan Naylor (G4KLX). Until 1995 it was the standard access software provided by British dial-up internet service provider Demon Internet.
Most modern operating systems provide a built-in implementation of TCP-IP protocol, so NOS is regarded as obsolete by its original developer. It still may have its uses for embedded systems that are too small for Linux.
References
- This article was originally based on material from the Free On-line Dictionary of Computing, which is licensed under the GFDL.
External links
- Phil Karn's web page on KA9Q NOS (http://www.ka9q.net/code/ka9qnos/)