This page contains web based apps and windows based programs built over the last 30 years or so. The really old stuff is no longer usable but is retained as an archive.
| Test Pattern Generator A simple web app that displays a high quality TV test pattern for checking the colour purity and symmetry of your display. |
| Conway's Game Of Life A web app that generates cell automata based on Conway's Game of Life, including the ability to load and save cell configurations to local folder. |
| Yahtzee Score Sheet An online scoresheet for the game Yahtzee feature automatic score calculations and scoring for up to 6 players. |
| Erlang-C Calculator A web app that calculates call centre operators, call capacity and service levels using Erlang-C. |
| Parking Calculator A variation on the previous web app that uses Erlang-C to calculate parking wait times for a given number of vehicle arrivals in a time period. |
| Collatz Calculator A simple web app that calculates the steps for the Collatz Conjecture starting with any positive number. |
| Staff Multiplier Calculator A web app that calculates overall staff numbers required to provide a 24/7 365 days per year shift based service. |
| Fraction Calculator A web app that calculates fractions from decimal numbers, identifying constants √2, √3, √5, pi and pi 2 in the fraction. |
| Parallel Resistors A web app that finds up to four parallel resistors to produce a desired value within a specified accuracy using standard values selectable from E6, E12, E24, E48, E96 or E192 value ranges. The app can also calculate the value of up to four resistors in parallel. |
| Jargon Generator A web app that generates three word jargon phrases - super useful for documents and reports. |
| Motor Simulator A web app that allows you to simulate and compare motors under load and apply various control algorithms. This is a web app version of the legacy Win32 app below with improved algorithms. |
| Audio Signal Generator A web app that allows you to create multiple audio signal generators for sine, square, triangular and sawtooth waves from 20Hz to 25KHz. Burst, glide and ramping are supported. This is a web app version of the legacy DOS app below but uses the host device's internal sound device. |
| Shift Calendar A web app that displays a perpetual shift calender for a 24/7 service based on 2 shifts per day with 4 teams. |
| Digital Clock A web app that displays a resizable clock with setable time zone and colours - right-click page for pop-up menu. |
| Countdown Timer A web app that displays a resizable timer with setable label and time. You can also show alert points, display current time and save all settings. |
| Calculator A web app that implements a basic scientific calculator. |
| Show External IP Address A simple web app that displays your current external IP address. |
| Show Web Browser User Agent ID A simple web app that displays the user agent ID of your web browser. |
| URI Encoder / Decoder A simple web app that allows you to encode or decode a uniform resource identifier. |
| Fast File Renamer Plus A windows based program that provides powerful bulk file renaming capabilities. |
| Scratchpad A simple windows based program that allows intermediate editing of cut and paste text. |
| Script A windows based scripting language that allows you to build your own mini-apps. |
| Touch A windows based app built using Script that allows you to easily change the create and modify date and time for a file. |
| Motor Control Simulator A windows Win32 based program that allows you to simulate and compare motors under load and apply various control algorithms. |
| SpaceIt A simple windows command line program that converts tabs to equivalent spaces. |
| TabIt A simple windows command line program that converts spaces to equivalent tabs. |
| AudioGen A legacy DOS command line program that implements an audio waveform generator. |
| SoftSwitch A legacy DOS suite of switch based programs for people who don't or can't use traditional input methods. |
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