Author Archives: Dave

Updating Digital One

Just in case anyone notices – I’ve just released a new version of the digital simulator. This one attempts to automatically fix wires that appear to be connected the wrong way round (in this simulator wires have a direction, and … Continue reading

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printf in C#

I’ve been wondering about making DANSE open-source for a while now (after all if anyone else wants to start using it seriously they will need the source code), but up until recently (well, yesterday) I’ve had a problem: DANSE uses … Continue reading

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Another reminder for me… ILMergeGUI

I’ve just updated the Audio Network Analyser program with a few bug-fixes and some additional features. For example there is now a new heuristic algorithm to try and automatically correct for phase measurements 180 degrees out – I’m still not … Continue reading

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And another reason to stop writing the book…

…is that with so many more complex demos being written, and a few more in the pipeline, I find I need to spend quite a bit of time maintaining the ones that are here; and some video instructions and “demos … Continue reading

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Couple more chapters, and a decision

OK, time for some stock-taking. When I first started this site, I was teaching communications theory full-time, and thought I’d be able to develop the content for this site in parallel with the work I was doing for my job … Continue reading

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Playing games with circuit theory?

So, I’ve been given this new module to teach next year: a basic introduction to electronics for those with little background in the subject. One of the books I’ve been reading recently (“Why Don’t Students Like School?” by Daniel T. … Continue reading

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New routeing demo just arrived

Just put up another demo, this one for routeing and Bellman-Ford. It doesn’t implement any actual protocols, it’s just there to demonstrate the operation of the Bellman-Ford algorithm. The first version of this was actually one of the first demos … Continue reading

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New “Flow Control” demo just up

Next new demo just put on-line: flow control. This one draws diagrams of the traces of packets going across links (with and without a router) using software flow control, stop-and-wait flow control, go-back-N flow control and such like. Now available … Continue reading

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The audio network analyser is now here

Latest program ready for release isn’t a demo in the usual sense; it’s not designed to be used in lectures and talks, it’s designed for use in the lab. Our students spend some of their first term here building an … Continue reading

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Some thoughts about exam revision and technique

A few years ago I wrote some advice for how to prepare and do exams for my students here, and I put them up on the internal web-site. A couple of people wrote from other institutions and asked if they … Continue reading

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