John's Wiki

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Revision as of 21:51, 13 November 2019 by John (talk | contribs) (The TELSTAR Videotex System)
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John Newcombe - Software developer and author of the Genetic Algorithm Framework for .Net, with an interest in the development of Genetic Algorithms and Neural Networks. John also has an interest in 8 bit computers and is the developer and maintainer of the Telstar videotex system.

Just a place to store and share stuff. Enjoy!


more articles...

The TELSTAR Videotex System

The TELSTAR Viewdata System is a modern application that provides a simple Viewdata platform in the style of Prestel ( For more details see The_TELSTAR_Videotex_System

FTSE small.png

Genetic Algorithm Framework for .Net

Please Note that the documentation and example code for the The Genetic Algorithm Framework for .Net (GAF) has been moved to a dedicated wiki at For an introduction to the topic using the GAF see the associated article for details.

Cluster Computing

A Raspberry Pi based 'Bramble' Cluster for Docker Swarm

This Article describes all of the steps to create a 'Beowulf' compute cluster using Raspberry Pi 3s. In this example 7 Raspberry Pis are used to give 28 cores of ARM processing with Docker Swarm. In addition, it is shown how Portainer can be used in order to monitor and manage the swarm.

See A Raspberry Pi based 'Bramble' Cluster for Docker Swarm

A Raspberry Pi based Cluster for use with ipyparallel and MPI

This article describes how a cluster can be configured for Scientific parallel computing with the aid of tool such as Jupyter', ipyparallel and MPI.

See A Raspberry Pi based Cluster for use with ipyparallel and MPI

GeoUK and GeoUK.OSTN

This is a simple to use Geodetic Library for .Net that will allow simple transformation to and from British National Grid. GeoUK.OSTN is an extension to GeoUK that provides OSTN02 transfiormations, see the NuGet project page ( and the associated CodeProject article ( for details on how to use these packages.

Source code is available here

GPS Library for .Net

The GPS Library is a single .Net 4.0 Assembly designed to provide a simple object based interface to both the Garmin and Magellan range of GPS devices. In addition the GPS Library will support NMEA devices.

The GPS Library was originally sold as the Waymex GPS Library for .Net. Waymex IT Ltd no longer exists and the rights to this software now lie with me, the original author.

Whilst the original code is available at (, please note that the code has been forked by Nerzhul and is available as a NuGet package at


The list below shows popular articles but is not an exhaustive list.