|Developer||Terry A. Davis|
|Working state||Active development|
|Source model||Open source (Public Domain)|
|Latest release||5.0 / 1 January 2017|
TempleOS (formerly J Operating System, SparrowOS and LoseThos) is a biblical themed lightweight operating system created over the span of a decade by the American programmer Terry A. Davis. The software is a x86-64 bit, multi-tasking, multi-cored, public domain, open source, ring-0-only, single address space, non-networked, PC operating system for recreational programming. The operating system was designed to be the Third Temple according to Davis and uses an interface similar to a mixture of DOS and Turbo C. Davis describes the operating system as a modern x86-64 Commodore 64 with C in place of BASIC.
Davis is a former atheist who believes that he can "talk with God" and that God told him the operating system he built was God's official temple. According to Davis TempleOS is of 'Divine' intellect due to the inspired nature of the code. According to Davis, God said to create the operating system with 640x480, 16 colors display and a single audio voice. The operating system was coded in a programming language developed by Davis in C/C++ called "HolyC". The OS runs a file system called "Red Sea".
- Hicks, Jesse (November 25, 2014). "God's Lonely Programmer". VICE Motherboard. Retrieved 2015-04-21.
- Sanders, James (January 21, 2014). "TempleOS: an educational tool for programming experiments". TechRepublic. Retrieved 2015-04-21.
- Mathieu, Bruno (November 28, 2014). "TempleOS : le système d'exploitation qui parle à Dieu" [TempleOs: The operating system that talks to God]. Tom's Guide (in French). Retrieved 2015-04-21.
- Bruet-Ferréol, Quentin (May 13, 2014). "Temple OS, un système d'exploitation pour parler à Dieu codé par un fou génial". Slate.fr (in French). Retrieved 2015-04-21.
- De Vito, Luca (December 4, 2014). "Terry, il programmatore di Dio. Dieci anni per creare il "tempio" digitale". la Repubblica (in Italian). Retrieved 2015-04-21.