Tools
How to write formulas on this site
Write maths in plain words and symbols and the site typesets it. Every example on this page, with what you type and what the reader sees.
Braindumps
Electronics, programming and retro computing, explained properly.
Programming
How to embed a Commodore 64 emulator on your website
Put a working Commodore 64 on a web page with a WebAssembly engine: the bare page, loading programs, keys, joysticks, sound and the WordPress plugin.
Retro
What was the first “Shoot em up”?
Spacewar! fired the first shots in 1962, but Space Invaders made the genre. The cabinet, the chip inside it and how it took over the UK in 1978.
Retro
NES Full PAL Game List UK Releases
A table of the PAL NES games released in the UK and Australia with their release years, close to the full 343, for anyone collecting the set.
Tools
Journey Cost Calculator
Work out what a journey will cost from the distance, your car's MPG and the price of fuel per litre, with the code to reuse.
Tools
QR Code Generator including code to use on your website
Make a QR code for any text or link in your browser, and copy the code that runs the generator to use it on your own website.
Tools
Remove VAT from a price tool (with code for your website)
Remove VAT from any price at any rate with this tool, and copy the commented HTML and JavaScript for your own website.
Tools
Convert Celsius to Fahrenheit and Fahrenheit to Celsius
Convert between Celsius and Fahrenheit with this small tool, and copy the HTML and JavaScript to run it on your own site.
Technology
Top Ten Essential Windows Programs
Ten programs I install on every Windows PC, from an office suite and a browser to Notepad++ and FileZilla, with free alternatives where they exist.
Technology
Top Ten Windows Keyboard Shortcuts
Ten Windows keyboard shortcuts worth learning, from switching windows and showing the desktop to locking the PC and opening Task Manager.