Leslie Goldsmith, from I.P. Sharp to KX
The Array Cast
A Brief History of IPSHARP
IPSHARP was a place of amazing talent and were virtually limitless possibilities. I got to work on lots of great projects at IPSHARP, both in APL and in 360 assembler. My interest in security and performance led to work on APL tools for programmers. The culmination of this was building a secure environment for APL that included a hierarchical file system.
Array Cast - February 17, 2023
Show Notes
Thanks to Bob Therriault and Adám Brudzewsky for gathering these links:
[01] 00:01:20 APLSeeds '23 https://www.dyalog.com/apl-seeds-user-meetings/aplseeds23.htm
[02] 00:02:26 KXCon https://kx.com/events/kx-con-2023/
[03] 00:04:30 plrank.com https://plrank.com/
[04] 00:05:30 Michael Higginson ArrayCast Episode https://www.arraycast.com/episodes/episode46-michael-higginson
Iverson Centenary https://britishaplassociation.org/iverson-centenary-december-2020/
[05] 00:06:30 Lower Canada College https://www.lcc.ca/
IBM 2741 https://en.wikipedia.org/wiki/IBM_2741
Anderson Jacobson serial modem https://en.wikipedia.org/wiki/Anderson_Jacobson
Gilman and Rose - An Interactive Approach https://apl.wiki/Books#APL_―_An_Interactive_Approach
Leap Year https://en.wikipedia.org/wiki/Gregorian_calendar#Accuracy
APL implementation Leap Year https://tryapl.org/?clear&q=≠%E2%8C%BF0%3D4000%20400%20100%204∘.%7C1600%201700%201800%201900%202000%202100%202200%202300%204000&run
[06] 00:13:53 Larry Breed https://apl.wiki/Larry_Breed
Scientific Time Sharing Corporation https://en.wikipedia.org/wiki/Scientific_Time_Sharing_Corporation
STSC promotional video https://www.youtube.com/watch?v=mjgkhK-nXmk
666 BOX https://www.jsoftware.com/papers/APLQA.htm#666box
[07] 00:17:20 University of Toronto https://www.utoronto.ca/
Arthur Whitney https://aplwiki.com/wiki/Arthur_Whitney
I.P. Sharp and Associates https://apl.wiki/I.P._Sharp_Associates
[08] 00:18:23 360 Assembler https://en.wikipedia.org/wiki/IBM_System/360_architecture#Instruction_formats
Eric Iverson https://aplwiki.com/wiki/Eric_Iverson
[09] 00:22:40 IESO https://www.ieso.ca/
[10] 00:22:50 Smart Meters https://en.wikipedia.org/wiki/Smart_meter
[11] 00:23:30 Kdb+ https://code.kx.com/q/learn/brief-introduction/
[12] 00:24:30 First Derivatives https://fdtechnologies.com/
KX https://kx.com/
KX Sensors https://kx.com/solutions/energy-utilities/
[13] 00:27:52 George Hotz https://en.wikipedia.org/wiki/George_Hotz
[14] 00:36:56 ⎕ec https://abrudz.github.io/SAX2/SAX61.pdf#page=790
[15] 00:41:20 APL Programming Language https://en.wikipedia.org/wiki/APL_(programming_language)
Blackberry RIM https://en.wikipedia.org/wiki/BlackBerry_Limited
Rise and Fall of Blackberry https://www.businessinsider.com/blackberry-smartphone-rise-fall-mobile-failure-innovate-2019-11
[16] 00:45:45 Ken Iverson https://en.wikipedia.org/wiki/Kenneth_E._Iverson
Guy Steele https://en.wikipedia.org/wiki/Guy_L._Steele_Jr.
[17] 00:55:12 Nick Psaris ArrayCast Episode https://www.arraycast.com/episodes/episode42-nick-psaris-q
[18] 00:56:23 Right Parenthesis ) https://apl.wiki/System_command
Quad ⎕ https://apl.wiki/Quad_name
[19] 00:57:16 APL2 https://aplwiki.com/wiki/APL2
Axiom System https://dl.acm.org/doi/pdf/10.1145/800136.804446
Trenchard More https://en.wikipedia.org/wiki/Trenchard_More
Jim Brown https://aplwiki.com/wiki/Jim_Brown
[20] 00:59:28 SHARP APL https://aplwiki.com/wiki/SHARP_APL
Roger Moore https://en.wikipedia.org/wiki/Roger_Moore_(computer_scientist)
Richard Lathwell https://en.wikipedia.org/wiki/Richard_H._Lathwell
[21] 01:04:15 Array Models https://apl.wiki/Array_model
[22] 01:04:50 Strand Notation https://apl.wiki/Strand_notation
[23] 01:06:05 J Programming Language https://www.jsoftware.com/indexno.html
[24] 01:18:02 q Programming Language https://kx.com/academy/
Type of https://apl.wiki/Type
[25] 01:21:13 Haskell Programming Language https://www.haskell.org/
[26] 01:24:30 ⎕ML Migration Level https://apl.wiki/Migration_level
[27] 01:25:50 Oxide and Friends https://oxide.computer/podcasts/oxide-and-friends
Java Pubhouse https://www.javapubhouse.com/episodes
[28] 01:27:26 British APL Meetings https://britishaplassociation.org/
[29] 01:35:06 contact AT ArrayCast DOT COM
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