List of language developers

This article lists notable language developers only. For all APL dialects including those without notable developers, see Timeline of APL dialects. To choose a dialect for use today, consider the article on running APL.

A language developer is an organization or individual that develops and distributes a programming language. This includes vendors, which are companies that sell APL implementations, as well as developers of free implementations. In the mainframe era it was common for hardware vendors to create APL implementations in machine code for their particular architecture. Developers active today use portable languages in order to support multiple architectures.

Past developers

Hardware vendors with APL implementations

• Analogic Corporation: The APL Machine
• Burroughs Corporation: APL-B5500, APL/700
• Commodore International: Waterloo APL
• Control Data Corporation (CDC): APL/VE
• Data General: AOS/VS APL
• Digital Equipment Corporation (DEC): APL-10, VAX-11 APL, APLSF
• Harris Computer Systems: Harris APL
• Honeywell: GCOS7 APL7
• Hewlett-Packard (HP): APL\3000
• Micro Computer Machines: MCM/70 firmware
• Siemens AG
• Xerox

Portable array language developers

• DECUS: APL-11 for DEC PDP-11
• IBM: APL2 and its predecessors
• I.P. Sharp Associates
• Leptonics Systems Company: MacAPL
• MicroAPL: APL.68000, APLX
• STSC

Active developers

Organizations

• APL2000: APL+Win, APL64
• Dyalog Ltd.: Dyalog APL
• Jsoftware: J
• Log-On Software: Log-On APL2
• Kx Systems: K4 and Q

Individual developers

• Adám Brudzewsky: Extended Dyalog APL
• Bob Smith (as Sudley Place Software): NARS2000
• dzaima: dzaima/APL, BQN
• Marshall Lochbaum: I, BQN
• Nick Nickolov: ngn/apl and ngn/k
• Rob Pike: Ivy
• John Gibbons: Nial