Scas updates 01 Jul 2020 KnightOS holds a special place in my heart, and it probably always will. It’s lodged right next to some of the tubes, and the doctors say there’s no way I would survive attempting to remove it. It’s a tragedy really, but I make the most of it. Your pointy swords won’t ensnare me forever, KnightOS! Eventually I’ll be dead! Ha! Read the full article » Decimal math support 19 Aug 2017 As a calculator programming hobbyist and open source enthusiast, I have been watching KnightOS’s development with great interest. Although I wanted to contribute, I was held back by lack of free time and needing to use my calculator for actual math classes. (Imagine that!) In the few weeks between graduation and starting work, however, I found myself able to contribute. I decided to focus on one of the highest barriers to adoption of KnightOS: its lack of decimal math support. Read the full article » SDK v2 released 08 Jul 2017 Though KnightOS development is slow, it is steady. The project never dies, despite long periods of stagnation, because every so often someone comes around and works on some new features that inspire others (myself included) to stir from idleness and contribute for a while. Read the full article » Read More »

What is KnightOS? KnightOS is an open-source operating system for Texas Instruments calculators. It's freely available in both source and binary forms under the terms of the MIT license. With KnightOS, you get an unmatched level of freedom and customization over your calculator. Why KnightOS? If you choose to use KnightOS, you get more memory to play with, more space for your files, and loads of great features. KnightOS has a package manager for easy installation of software and can run several things at once. If you're into free and open-source software, you'll also find KnightOS to be a hacker's paradise. Can I use KnightOS? KnightOS will run on any upgradable Texas Instruments calculator based on the z80 CPU. This includes the TI-73, TI-83+, TI-83+ Silver Edition, TI-84+, TI-84+ Silver Edition, and TI-84+ Color Silver Edition. You can also run it on the French variations of these calculators, or in an emulator. Get KnightOS »