A very influential mainframe Pascal compiler - M247

[@davidmcclain3408]

Watching this video was great! But it really drove home why the advent of Lisp Machines and Smalltalk were so radically revolutionary in their day. Today, I thank my lucky stars that I have a wonderful Lisp environment to live in. The video reminded me to thank the computer gods...

[@captaindunsell8568]

At Andor Systems, we developed out CacheXchange DaSD controller based upon the 370xa instruction set using a process we called compiled code simulation using Pascal …

[@moshixmainframechannel]

Great !

[@k4vms]

Nice presentation and history lesson. I learned stuff I did not know. Worked for DEC for many years , Apple, and IBM Spent 15 years with DEC and 18 Years with IBM Ricky from IBM(retired)

[@moshixmainframechannel]

Glad it was helpful!

[@jirehla-ab1671]

Hmmm how do banks handle millions of database connections when processing millions of transactions?​@@moshixmainframechannel

[@timothystark4475]

Wow. I learned how to writer Pascal programs on VAX/VMS systems at my university as my computer science major. Later I switched to C/C++ programming after my graduation.

[@SteveAB4EL]

I did a lot of programming with Borland Pascal (and other compilers), but my introduction to PASCAL happened in the Faculty/Graduate TN3270 job entry room for the Amdahl. There was a grad student (like me) from Jaipur who would nap on the bench (after Midnight) waiting for the next run of her PASCAL program to print out. *I didn't know PASCAL,* but when she got stuck, I would look at her code logic and ask her questions ... until she would see how to fix it! That would be 1984. :^)

[@moshixmainframechannel]

I hope she was good looking

[@ChrisJackson-js8rd]

pascal and basic were what i learned on :) the history of fortran compilers is actually really interesting too

[@moshixmainframechannel]

I agree

[@mieszkogulinski168]

I used Turbo Pascal (and then Free Pascal) as a kid :) I still have two books with tutorials (in Polish) somewhere on the shelf.

[@TheStefanskoglund1]

Moshix, Korn shell is from the first half of the 80s ie 82ish and was written by David Korn.

[@moshixmainframechannel]

Thanks ! But the time period would have been correct.

[@johnmckown1267]

I loved PL/I. Pascal confused me at times due to the concept of "statement ending" vs. 'statemen separating" things. I kept putting PL/I semi-colons where they didn't belong.

[@moshixmainframechannel]

Luckily I learned pascal before PL/1 so for me this wasn’t an issue

[@NineInchTyrone]

I took a PL/1 course and enjoyed it. Why didn’t it take off ?

[@moshixmainframechannel]

@NineInchTyrone wasn’t widely available. It’s a big language. Difficult to write compilers for it. Poor I/O capabilities. library too mainframe specific (like the ON conditions)

[@NineInchTyrone]

@@moshixmainframechannel 🤔

[@KameraShy]

Just starting to watch, but I am absolutely flabbergasted that a tape from Way Back Then is still readable! Apparently without error. Yeah, IBM really did make solid iron.

[@mieszkogulinski168]

Tapes are estimated to be more reliable than hard disks over long time - modern archival tapes are estimated to work at least 30 years from date of production.

[@moshixmainframechannel]

@mieszkogulinski168 yes but he problem will be to have devices that can read those tapes in 30 years. Find me a device that can read a tape from 1994, and an operating system and drivers that can use that device.

[@mnoxman]

The Domain OS was mostly written in Pascal. I know the guy who ran the PASCAL users group.

[@vmisev]

goto in Pascal??? Ah, what the sacrilege!!! Just joking, thanks for the very interesting video! Also, I'm very glad that you went with Rob Prins TK, I was promoting his work for the long time (not that anyone listens to me, but still...) I had a lot of health issues (old fart me), but I hope I'll be back online soon promoting your channel and MVS/TK. All the best, my dear friend and teacher!

[@moshixmainframechannel]

Pls get better !

[@AK-vx4dy]

Turbo/Borland Pascal is GOAT !

[@moshixmainframechannel]

Ok

[@davidmcclain3408]

Holy Smokes! This takes me back more than 50 years! I see you operating a virtual mainframe from a modern workstation. How do you tolerate the massive slowdown in factor going so far back in time? I remember working for IBM, and I do remember their mindset as being that theirs is the only way. But I also remember the 1980's jolting IBM into using 3rd party chips and software.

[@moshixmainframechannel]

Massive slowdown in factor? Not sure I understand.

[@codewizard58]

I found Pascal (P6000) too verbose so I wrote a C compiler in Pascal. This was in 1982 when I was working at Imperial College Computer Centre.

[@moshixmainframechannel]

There you go !

[@trs80model14]

Never did Pascal on a mainframe. Started with Tiny Pascal on the TRS80, then Waterloo Pascal on a SuperPET for comp sci classes, then Turbo Pascal on cp/m and pc’s. MODULA-2 was supposed to take over , at one time…

[@moshixmainframechannel]

I did some Modula-2 but without the LILITH machine it wasn’t going to be any fun

[@charlesanthony3248]

UCSD Pascal for me; actually went to UCSD to get my copy.

[@moshixmainframechannel]

Nice. What kind of machine ?

[@charlesanthony3248]

@@moshixmainframechannel DEC PDP-11

[@LindenAshbyMK]

Is there any chance you have Stoney Brook Pascal (compiler) documentation somewhere ? The PC/DOS version of it.

[@moshixmainframechannel]

Sorry. I don’t have it

[@fredericv7194]

Hi, thank you for this great video. Did you think about backinh up this tape image on web archive? It would be great if we could all try this compiler in mvs emulators. Best regards

[@moshixmainframechannel]

Thanks. It’s the property of IBM. Only they can share it

[@captaindunsell8568]

Long live hercules