Terrence Andrew Davis (December 15, 1969 – August 11, 2018) was an American electrical engineer, computer programmer, and outsider artist best known for creating and designing TempleOS, a public domain operating system, written in a programming language developed by Davis called HolyC. He believed God had commanded him to create TempleOS as the Third Temple prophesied in the Bible. In 1996, Davis began experiencing regular manic episodes, some of which led to hospitalization. Initially diagnose...
