Open Source Windows Exam Software

Integrated Development Environment for some microcontrollers based on 8051(e.g. AT89S8253). Supported languages are Assembly and C. It has its own simulator, assembler, editor and many other tools. See the project web site for more details and the newest updates.

Evrika is a science simulator and advanced calculator, which is based on modules. Modules are libraries containing definitions of concepts that can be used in the simulation. By definitions we mean properties, actions, reactions, etc. Evrika is used for creating both simulations and modules, so you can build your own module of elements, then use them to create virtual experiments and simulations. Also, you can make advanced calculations. Evrika is basically an executable that reads and interprets code, outputing result. Each new version will offer new possibilities to define your elements and use them, so it is important to always have the last release. Of course, Evrika is backward-compatible, cross platform and free to use. In the near future an advanced editor and viewer will be created, so you can better manage your code and view the results.

Version v4.0.2 03/08/2022 A Gem Stone weight estimator/calculator for mounted gemstones in items of jewellery. Automatically selects from over 180 gemstones and most popular cuts for diamonds and coloured stones.

A simple C++ calculator for the SAT II Math subject test.

A helpful little utility that allows you to find the value of a standard resistor without memorizing the color codes. Also includes and Ohms Law calculator and a resistor color code quiz (currently in the process of being implemented)