Editing FOCAL (programming language) (section)

==External links==
*[ftp://ftp.pdp8.net/software/games/focal/ FOCAL source code]{{dead link|date=May 2025|bot=medic}}{{cbignore|bot=medic}}, FOCAL source for several programs, including Lunar Lander, Sumer Game, and others
*[http://www.cs.uiowa.edu/~jones/pdp8/focal/ DEC's FOCAL 1969 Promotional Booklet]
*[http://simh.trailing-edge.com/ The Computer History Simulation Project (Focal is available as a free download here)]
*{{Cite FTP |url=ftp://www.cozx.com/pub/langs/focal.tar.gz |server=www.cozx.com |url-status=dead |title=FTP link }}C-source version that runs under several operating systems, including Linux
*[http://www.catb.org/retro the C-source for a modern DOS version suitable for teaching]  
*[https://web.archive.org/web/20110525101809/http://www.libex.ru/detail/book91959.html Abramov V.A. Dialogue language FOCAL] (in Russian) {{ISBN|5-06-001785-0}}
*[https://web.archive.org/web/20080626062957/http://www.vntb.ru/kniga255.html Osetinsky L.G. FOCAL for mini-computers] (in Russian) {{ISBN|5-217-00323-5}}
*[http://samlib.ru/u/uirh/kn_o_foc.shtml Фокал снаружи и изнутри. (пишется)] – FOCAL outside and inside. (in progress) (in Russian)
*[http://samlib.ru/editors/u/uirh/foc_hlp.shtml Файл справки к фокалу-1б] – Help file for FOCAL-1B (in Russian)

{{Digital Equipment Corporation}}

[[Category:JOSS programming language family]]
[[Category:Digital Equipment Corporation]]