Displaying NAPLPS (Telidon 709) graphics on a modern computer: Technical Note
Date
2016-06-09
Authors
Durno, John
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Abstract
In 2015 the University of Victoria Archives began work on restoring a series of NAPLPS/Telidon 709 graphics created in the early 1980s by Victoria BC artist Glenn Howarth. NAPLPS (North American Presentation Level Protocol Syntax) was a vector image encoding standard developed primarily by the Canadian federal department of Communications for use on Telidon Videotex systems. Although NAPLPS has been obsolete since the late 1980s, we determined that it is still possible to render NAPLPS graphics on contemporary computing systems using readily available shareware (Microstar PP3) running in an open source DOS emulator (DOSbox). This technical note documents our method in sufficient detail that others seeking to display NAPLPS graphics should be able to do so by following the instructions contained herein.
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NAPLPS, North American Presentation Level Protocol Syntax, Telidon, Telidon 709, Computer graphics, Glenn Howarth