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How It Works • Programmer

Terry A. Davis

Terrence Andrew Davis (December 15, 1969 – August 11, 2018) was an American electrical engineer and computer programmer best known for creating TempleOS, a public domain operating system.

Updated September 11, 20261 min readCited sources

Terry Davis was an American programmer and electrical engineer. He is best known for creating TempleOS, a public domain operating system with a biblical theme.

What is TempleOS?

TempleOS is a public domain operating system designed and built by Terry Davis. It was written in HolyC, a programming language he created. Davis believed God commanded him to build it as the Third Temple.

Why it matters

TempleOS stands out as a technical achievement built largely by one person. However, Davis's story is also a tragic one: he was diagnosed with schizophrenia and his work was shaped by his mental health struggles.

Key details

Davis was born in 1969 and had formal training in electrical engineering. He died in 2018 in The Dalles, Oregon. His work remains a notable example of outsider art in computing.

In short

  • Created TempleOS, a public domain operating system.
  • Developed HolyC programming language.
  • Project was framed as a religious commandment.
  • Remembered as a unique figure in programming culture.

Quick questions

Who was Terry Davis?
Terry Davis was an American programmer best known for creating TempleOS.
What is TempleOS?
TempleOS is a public domain operating system designed by Davis with a biblical theme.
What is HolyC?
HolyC is the programming language Davis created for TempleOS.

Sources

  1. Wikipediahttps://en.wikipedia.org/wiki/Terry_A._Davis
    Supports: Birth and death dates, nationality, occupations, TempleOS, HolyC, and religious motivation for TempleOS.
  2. Wikiquotehttps://en.wikiquote.org/wiki/Terry_A._Davis
    Supports: Biographical details including occupation and mental health background.
  3. The New Stackhttps://thenewstack.io/the-troubled-legacy-of-terry-davis-gods-lonely-programmer/
    Supports: TempleOS development, HolyC, and biographical context.
  4. German Wikipediahttps://de.wikipedia.org/wiki/Terry_A._Davis
    Supports: Occupation, TempleOS, HolyC, and death place.