The APL Campfire is a recurring meeting hosted by Adám Brudzewsky every fourth Sunday at 18:00 UTC, since 9 May, 2021, with each session lasting about an hour. The event focuses on the history of APL programming, inviting participants to tell stories of their experiences, and is recorded for future reference.
APL Campfires are held using Zoom:
The series started after Joel Wittenberg contacted Dyalog Ltd., wanting to reconnect with the APL community. He started the APL Dinosaurs Facebook group, and suggested a live meeting. Via Zoom, he met with his friend Harry Saal and Dyalog employee Adám Brudzewsky for an hour on May 9, 2021. The meeting was deemed so enjoyable, that the group decided to make it a scheduled recurring event.
|May 9||Harry J. Saal, Joel Wittenberg, Adám Brudzewsky||APL on mainframes,
|Jun 6||Joel Wittenberg, Ron Murray||Murray's history with APL, including APL/700 and the APL Machine, and at Microsoft. Wittenberg's early exposure to Iverson Notation and PAT.||1:06:28|
|Jul 4||Len Shustek, Joey Tuttle, Joel Wittenberg||Shustek at IBM, Standord, SLAC, making APL\360 a multi-user system, running it under other OSs, MFT & (Experimental) MVT, the Computer History Museum, APL.SV, Phil S. Abrams||1:06:24|
|Aug 1||Gitte Christensen, Joey Tuttle, Joel Wittenberg||Working at IPSA, Ian Sharp, 666 BOX (early email), MagicStore, meeting people online (including Morten Kromberg), Christensen's first APL application, APL conferences, the boxed/nested split, Ken Iverson's Rationalized APL and J, the Rank operator, IBM/Insight Systems/Adaytum/Cognos/Dyadic Systems/Dyalog Ltd., Alex Morrow||1:06:22|
|Aug 29||Ray Polivka, Jon McGrew, Joey Tuttle, Walter Fil, Joel Wittenberg||ILLIAC, at IBM, Fred Brooks, Adin Falkoff, APL\360, IBM 7030 Stretch, IVSYS/7090, Ken Iverson, Science Research Associates, computer assisted instruction, IBM 1500, teaching APL, books (own and others'), SIGAPL, SHARE, APL conferences, Iverson Award, Garth Foster, APL Quote Quad, Minnowbrook, upcoming fourth book, APL 5100,
|Sep 26||Andy Shiers and Geoff Streeter||40 years of Dyalog APL, early days of Dyadic Systems||1:05:42|
|Oct 24||Jim Brown, Ron Murray||Early days at IBM and Syracuse University. Discussions with Ken Iverson and Adin Falkoff, extending base value (
|Nov 21||Zbigniew "Ziggy" Stachniak, Bob Armstrong||Timeline leading to MCM/70:wikipedia:Mers Kutt, York APL, Intel 8008, APL '73, speed of
|Dec 19||Charles Brenner||Larry Breed, Roger Moore, IBM at Yorktown Heights, Ken Iverson's A Programming Language, Adin Falkoff, Eugene McDonnell, APL\360, implementing (high-rank) Transpose and Rotate with APL models, Imlac, APL\1130, the modem precursor, generating poetry by sampling trigrams, STSC, Roy Sykes, optimised transpose of Boolean arrays, Bob Bernecky, John Gilmore, control structures, APL2000, John Scholes, Roger Hui, IPSA, dfns.dws, IBM 650, uses of APL, forensic mathematics, Adrian Smith||1:13:16|
|Jan 16||Curtis Jones, André Orlans, Harry Saal, Adám Brudzewsky||Early days of APL. Does APL (still) have a niche?||1:07:40|
- YouTube playlist
- "Joel Wittenberg made critical assessments of that design and suggested important elaborations which were incorporated in later designs." Adin Falkoff: A pictorial format function for patterning decorated numeric displays. APL81.
- 2016 Iverson Award winner.
- 1990 Iverson Award winner and co-author of three authoritative APL textbooks.
- At Dyadic Systems since 1987, now Dyalog's Chief of Operations.
- Computing historian, associate professor of computer science at York University in Toronto, and author of Inventing the PC.