Online Historical Encyclopaedia of Programming Languages

An online roster and genealogy of 8945 programming languages from the 18th century to the present, featuring 7,800 influence links and over 11,000 citations.

Here is the genealogical tree of HOPL:

About HOPL

How to navigate and the rationale of the Gernsback Machine

Computer language taxonomy and genealogy

References works

Links etc to other sites

Thanks and acknowledgements

Librarians Diarmuid J Pigott resonsibility for incunabula-1989 Bruce M Axtens 1990-present Quartermaster Steve Poulson house programming (sim)

© Diarmuid Pigott 1995-2020. Do not copy, do not reproduce! why?

Send all errata and crash notifications to hopl.acquisitions@gmail.com