Episode 38 - JOVIAL, The Evolution Of Programming Advent Of Computing podcast

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Episode 38 - JOVIAL, the Evolution of Programming

לפני 5 שנים 54:38

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תוכן מסופק על ידי Sean S Haas and Sean Haas. כל תוכן הפודקאסטים כולל פרקים, גרפיקה ותיאורי פודקאסטים מועלים ומסופקים ישירות על ידי Sean S Haas and Sean Haas או שותף פלטפורמת הפודקאסט שלהם. אם אתה מאמין שמישהו משתמש ביצירה שלך המוגנת בזכויות יוצרים ללא רשותך, אתה יכול לעקוב אחר התהליך המתואר כאן https://he.player.fm/legal.

The creation of FORTRAN and early compilers set the stage to change computing forever. However, they were just the start of a much longer process. Just like a spoken language, programming languages have morphed and changed over time. Today we are looking at an interesting case of this slow evolution. JOVIAL was developed during the Cold War for use in the US Military, and it's been in constant small-scale use ever since. It's story gives us a wonderful insight into how programming language change over time, and why some stick around while others die out.

Like the show? Then why not head over and support me on Patreon. Perks include early access to future episodes, and stickers: https://www.patreon.com/adventofcomputing

… continue reading

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#Tech #History #Sean S Haas #Sean Haas #Computer

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Episode 38 - JOVIAL, the Evolution of Programming

Advent of Computing

49 subscribers

published לפני 5 שנים

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MP3•בית הפרקים

תוכן מסופק על ידי Sean S Haas and Sean Haas. כל תוכן הפודקאסטים כולל פרקים, גרפיקה ותיאורי פודקאסטים מועלים ומסופקים ישירות על ידי Sean S Haas and Sean Haas או שותף פלטפורמת הפודקאסט שלהם. אם אתה מאמין שמישהו משתמש ביצירה שלך המוגנת בזכויות יוצרים ללא רשותך, אתה יכול לעקוב אחר התהליך המתואר כאן https://he.player.fm/legal.

The creation of FORTRAN and early compilers set the stage to change computing forever. However, they were just the start of a much longer process. Just like a spoken language, programming languages have morphed and changed over time. Today we are looking at an interesting case of this slow evolution. JOVIAL was developed during the Cold War for use in the US Military, and it's been in constant small-scale use ever since. It's story gives us a wonderful insight into how programming language change over time, and why some stick around while others die out.

Like the show? Then why not head over and support me on Patreon. Perks include early access to future episodes, and stickers: https://www.patreon.com/adventofcomputing

… continue reading

174 פרקים

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Episode 160 - What can Lunar Lander tell us about FOCAL? 56:28

לפני 10 ימים56:28

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Lunar Lander is one of the best loves video games of all time. The game was created in 1969 as an homage to the recent Apollo 11. From there it would only spread. Just about anything that can print text has it's own version of Lunar Lander. The early history of this game is mixed up with something weird: two nearly identical programming languages. Today we will be using the history of Lunar Lander as a good excuse to look at an obscure tongue called FOCAL. This language is so close to BASIC that direct line-by-line translation is possible. But are the two connected?…

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Episode 159 - The Intel 286: A Legacy Trap 1:06:40

לפני 24 ימים1:06:40

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In 1982 Intel released the iAPX 286. It's was the first heir to the smash-hit 8086. But the 286 was developed before the IBM PC put an Intel chip on every desk. It's design isn't influence by the PC. Rather, it reaches further into the past. Today we are looking at the strange melding of old technology, new ideas, and compatibility that lead to the 286.…

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Episode 158 - INTERCAL RIDES AGAIN - Restoring a Lost Compiler 1:08:22

לפני 5 weeks1:08:22

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In 1973 the world caught it's first glimpse of INTERCAL. It's a wild and wacky language, somewhere between comedy and cutting satire. But the compiler was never circulated. There would be later implementations, but that original compiler remained lost to time. That is, until now. This episode covers how the original source code was found, and my attempt to get it up and running. Get the source code for INTERCAL72 here: https://github.com/rottytooth/INTERCAL72/ Read the original INTERCAL manual: https://3e8.org/pub/intercal.pdf…

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Episode 157 - Only S1 Users Will Survive! 1:04:40

לפני 8 weeks1:04:40

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The S1 operating system can do it all! It can run on any computer, read any disk, and execute any software. It can be UNIX compatible, DOS compatible, and so, so much more! But... can S1 ship? Today we are talking about an operating system that sounds too good to be true. Is it another example of vaporware? Or is S1 really the world's most sophisticated operating system?…

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Episode 156 - RPG, a Different Paradigm? 1:04:10

לפני 10 weeks1:04:10

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How do you make a computer act less like a computer? It sounds like some kind of riddle, but in the early 1960s it was an actual problem. As IBM customers transitioned from tabulators to computers they ran into all sorts of practical issues. Programmers became a hot commodity. But how do you find a programmer in 1959? And how can you even afford such a luxury? Wouldn't it be better if you could just use your new computer as a tabulator? Well, with RPG, all that and more was possible.…

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Episode 155 - LINC 58:21

לפני 12 weeks58:21

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58:21

In the early 1960s a neat little machine came out of MIT. Well, kind of MIT. The machine was called LINC. It was small, flexible, and designed to live in laboratories. Some have called it the first personal computer. But, is that true? Does it have some secret that will unseat my beloved LGP-30? And how does DEC fit into the picture?…

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Episode 154 - ACTing Up 1:20:48

לפני 14 weeks1:20:48

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1:20:48

The LGP-30 is one of my favorite computers. It's small, scrappy, strange, and wonderous. Among its many wonders are two obscure languages: ACT-I and ACT-III. In this episode we are exploring the ACTS, how the LGP-30 was programmed in practice, and why I've been losing sleep for the last few weeks.

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Episode 153 - The Keypact Mystery 55:07

לפני 16 weeks55:07

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When I was down at VCF SoCal I ran into a strange machine: the Keypact Micro-VIP. It's a terminal without a keyboard, covered in dials, with a speaker and a switch labeled "voice". This chance encounter with the unknown sent me down a wild path. It involved the creeping spread of computing, chicken feed, door to door life insurance salesmen, and at least one early hacker.…

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Episode 152 - LIVE at VCF - Reviving Retro Panel 1:00:06

לפני 19 weeks1:00:06

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A special treat from VCF SoCal. While visiting I had the chance to host a panel on restoration and preservation. I was joined by: David from Usagi Electric ( https://www.youtube.com/@UsagiElectric) Rob from Souther Amis ( https://www.southernamis.com/) Jim, Former Executive Director Computer Museum of America ( https://computerhalloffame.org/home/about/)…

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Episode 151 - The Friden Flexowriter 1:00:33

לפני 22 weeks1:00:33

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1:00:33

Have you ever looked at an old computer and seen a weird typewriter thing tacked on? In most cases that's a device called a Flexowriter. It's half electric typewriter, half teleprinter, half tape reader, and all business! This episode we are chronicling the rise, fall, and weird business dealings of the Flexowriter.…

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Episode 150 - Starting Windows Up 1:05:06

לפני 24 weeks1:05:06

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1:05:06

In the modern day Windows is a power house, but that wasn't always the case. In this episode we are looking at the fraught development of Windows 1.0. During development it was called vaporware, it was panned in the press, roasted at at least one trade show, and even called... "eclectic". Through it all a vision in lime green would take form.…

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Episode 149 - IDRIS Is Not UNIX 58:47

לפני 26 weeks58:47

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58:47

This episode we are taking a trip back to UNIX world. We're looking at IDRIS, the first clone of UNIX. It was supposed to be highly compatible, but use no code from Bell Labs. IDRIS ran on everything from the Intel 8080 up to the IBM System/370. There was even a version that could run MS-DOS programs. Sound too good to be true? Well, that may be the case. Selected Sources: https://archive.org/details/aquartercenturyofunixpeterh.salus_201910/page/n196/mode/1up - A Quarter Century of UNIX https://github.com/hansake/Whitesmiths-Idris-OS - Co-Idris disk images and executables…

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Episode 148 - Is BLISS Ignorance? 1:03:21

לפני 28 weeks1:03:21

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1:03:21

In 1970 a little language called BLISS emerged from Carnegie Mellon University. It was a systems language, meant for operating systems and compilers. It was designed, in part, as a response to Dijkstra's famous Go To Considered Harmful paper. It had no data types. It used the most bizzare form of the pointer I've ever seen. And it was a direct competitor to C. Sound interesting, yet? Selected Sources: https://bitsavers.computerhistory.org/pdf/dec/decus/pdp10/DECUS-10-118-PartII_BlissReadings_Dec71.pdf - Readings on BLISS https://www.cs.tufts.edu/~nr/cs257/archive/ronald-brender/bliss.pdf - A History of BLISS…

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Episode 147 - Molecular Electronic Computer 54:48

לפני 30 weeks54:48

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In 1961 Texas Instruments unveiled the Molecular Electronic Computer, aka: Mol-E-Com. It was a machine that fit in the palm of your hand, but had all the power of a much larger computer. This was in an age of hefty machines, which made the achievement all the more marvelous. How was this even possible? It was all thanks to the wonders of molecular electronics, and a boat load of funding from the US Air Force. Selected Sources: https://web.archive.org/web/20160304071831/http://corphist.computerhistory.org/corphist/documents/doc-496d289787271.pdf - Invention of the Integrated Circuit, Kilby https://archive.org/details/DTIC_AD0411614/page/n15/mode/2up - Investigation of Silicon Functional Blocks, TI https://apps.dtic.mil/sti/tr/pdf/AD0273850.pdf - Silicon Semiconductor Networks, TI…

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Episode 146 - The Z4 58:00

לפני 32 weeks58:00

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58:00

The Z4, completed by Konrad Zuse in 1945, is a computer with a wild story. It was made from scrounged parts, survived years of bombing raids, moved all around Berlin, and eventually took refuge in basements and stables. In this episode we will follow the Z4's early days, and look at how it fits into the larger picture of Zuse's work. Along the way there is looting, rumors, and even... IBM! Selected Sources: The Computer, My Life - Konrad Zuse's autobiography https://web.archive.org/web/20090220012346/http://delivery.acm.org/10.1145/370000/361515/p678-bauer.pdf?key1=361515&key2=3342588511&coll=&dl=acm&CFID=15151515&CFTOKEN=6184618 - Plankalkul, F.L. Bauer and H. Wossner https://ieeexplore.ieee.org/document/9787324 - Architecture of the Z4, Rojas…

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Episode 145 - Zuse's Mysterious Machines 1:00:39

לפני 34 weeks1:00:39

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1:00:39

In 1933 Konrad Zuse, a German civil engineer, caught the computing bug. It would consume the rest of his life. According Zuse he invented the world's first digital computer during WWII, working in near total isolation within the Third Reich. How true is this claim? Today we are looking at Zuse's early machines, the Z1, Z2, and Z3. Selected Sources: The Computer -- My Life, by Konrad Zuse https://arxiv.org/pdf/1406.1886 - Z1 Architecture paper by Rojas https://sci-hub.se/10.1109/85.707574 - Z3... Turing Complete? also by Rojas…

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Episode 144 - RABBITS 21:20

לפני 36 weeks21:20

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Episode 143 - The Haunted Hard Drive 21:42

לפני 37 weeks21:42

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Have you ever felt like a computer just refuses to work? Like a machine has a mind of it's own? In 1970 a hard drive at the National Farmers Union Corp. office decided to do just that. That year it started crashing for apparently no reason. It would take 2 years and 56 crashes to sort out the problem. The ultimate solution would leave more questions than answers. Was the hard drive haunted? Or was something else at play? Selected Sources: https://archive.org/details/computercrime0000mckn/page/98/mode/2up - Computer Crime https://archive.org/details/sim_computerworld_1972-08-02_6_31/mode/1up?view=theater - Computer World article…

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Episode 142 - OS and JEDGAR 19:10

לפני 38 weeks19:10

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19:10

This time we are diving back into the Jargon File to take a look at some hacker folklore. Back in the day hackers at MIT spent their time spying on one another's terminals. That is, until some intrepid programmer found a way to fight back. Selected Sources: http://www.catb.org/esr/jargon/html/os-and-jedgar.html - OS and JEDGAR https://github.com/PDP-10/its - ITS restoration project…

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Episode 141 - Computer Ruins Grocer 18:36

לפני 39 weeks18:36

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18:36

In 1962 Food Center Wholesale Grocers Inc installed a new IBM 305 RAMAC. That's when things started to go wrong. The faulty machine seemed to have a mind of it's own, and would spread chaos to grocery stores all around Boston. Selected Sources: https://archive.org/details/computerinsecuri0000norm - Computer Insecurity https://bitsavers.computerhistory.org/magazines/Computers_And_Automation/196805.pdf - Computers and Automation article https://archive.org/embed/sim_computerworld_january-01-08-1969_3_1 - Computerworld…

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Episode 140 - Assembling Code 1:03:46

לפני 40 weeks1:03:46

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1:03:46

Programming, as a practice and study, has been steadily evolving for the past 70 or so years. Over the languages have become more sophisticated and user friendly. New tools have been developed that make programming easier and better. But what was that first step? When exactly did programmers start trying to improve their lot in life? It probably all started with assembly language. Well, probably… Selected Sources: https://albert.ias.edu/server/api/core/bitstreams/d47626a1-c739-4445-b0d7-cc3ef692d381/content - Coding for ARC https://sci-hub.se/10.1088/0950-7671/26/12/301 - The EDSAC http://bitsavers.informatik.uni-stuttgart.de/pdf//ibm/periodicals/Applied_Sci_Tech_Newsletter/Appl_Sci_Tech_Newsletter_10_Oct55.pdf - IBM Applied Sci Tech Newsletter…

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Episode 139 - HUTSPIEL 1:06:25

לפני 42 weeks1:06:25

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1:06:25

The early history of computer games is messy, weird, and surprising. This episode we are looking at HUTSPIEL, perhaps one of the oldest games ever played on a computer. It's a wargame developed to simulate nuclear conflict... and it's 100% analog. Join us as we find out just what tax dollars were being used for in 1955. Selected Sources: https://archive.org/details/hutspiel-a-theater-war-game - The HUTSPIEL paper…

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Episode 138 - Type-It-Yourself 1:03:15

לפני 44 weeks1:03:15

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I'm finally back to my usual programming! This time we are taking one of my patent pending rambles through a topics. Today's victim: the humble type-in program. Along the way we will see how traditions formed around early type-in software, and how the practice shifted over time. Was this just a handy way to distribute code? Was this just an educational trick? The answers are more complex than you may first imagine. Selected Sources: https://s3data.computerhistory.org/pdp-1/DEC.pdp_1.1964.102650371.pdf - LISP for the PDP-1 https://archive.org/details/DigiBarnPeoplesComputerCompanyVol1No1Oct1972 - PCC Issue #1 https://archive.org/details/Whattodoafteryouhitreturn - What To Do After You Hit Return…

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Episode 137 - Edge Notched LIVE 52:33

לפני 46 weeks52:33

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52:33

LIVE from VCF West 2024, my talk on edge notched cards! Since this is a live recording from an auditorium the audio is a little boomy, so be warned. Actually, I'm pretty sure this is the same space that CHM uses for some of their oral histories. What I have today is just the audio component. VCF will be posting a full video eventually, which I'll be sure to pass around.…

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Episode 136.5 - Data Center Disaster 18:08

לפני 48 weeks18:08

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18:08

I've gotten busy preparing for VCF West, so this time you get a short one! In this byte-sized episode we are looking at a short and strange story: that time a plane struck a software company, and the company turned around and used the crash in their own ads.

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Episode 136 - Getting On TRAC 1:14:40

לפני 50 weeks1:14:40

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1:14:40

Have you ever formed a bad first impression? Way back when I formed a hasty impression of this language called TRAC. It's been called a proto-esoteric language, and for good reason. It's outlandish, complex, and confounding. But, after the urging of some listeners, I've decided to give TRAC a second look. What I've found is, perhaps, more confusing than I ever imagined. This episode we are looking at the wild history of TRAC, how it actually pioneered some good ideas, and why it feels so alien. Selected Sources: https://dl.acm.org/doi/pdf/10.1145/800197.806048 - 1965 TRAC paper https://github.com/gmilmei/trac64 - TRAC64 processor in "modern" C https://dl.acm.org/doi/pdf/10.1145/365230.365270 - 1966 TRAC paper, with more code!…

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Episode 135 - XENIX 1:07:04

לפני 1 year1:07:04

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In 1984 SCO released PC XENIX, a port of UNIX that ran on an IBM PC. To understand why that's such a technical feat, and how we even got here, we have to go back to the late 1970s. In this episode we are taking a look at how Microsoft got into the UNIX game, and how they repeatedly struggled to make micro-UNIX work for them. Along the way we run into vaporware, conspiracy, and the expected missing sources!…

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Episode 134 - Beyond the Punch 1:04:10

לפני 1 year1:04:10

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This episode I'm opening up my research vault to present some interesting pre-digital technology. Back before computers us humans used to write everything down on paper. Over time that lead to some organizational issues. By 1890 punch cards show up to solve one aspect of this problem, but that technology had it's limitations. We will be looking at other paper-based approaches to data management, as I slowly try and explain a realization I've come to about the early history of hypertext.…

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Episode 133 - LIVE from Intelligent Speech 2023 41:15

לפני 1 year41:15

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41:15

I'm currently out traveling. Due to my poor planning I managed to score back to back trips, for both business and leisure. While I'm not able to get an episode out on time, I do have a replacement! In 2023 I was invited to speak at the Intelligent Speech conference. So, today, I present the audio of that talk. The topic is, of course, the wild path of the Intel 8086's creation and rise to power! If you prefer to watch, here's the video of the same talk: https://www.youtube.com/watch?v=6ud8LK3-eAM…

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Episode 132 - The PDP-1 1:15:43

לפני 1 year1:15:43

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1:15:43

In 1959 the world bore witness to a new type of computer: the PDP-1. It was the first interactive computer to really make a dent in the market. Some say it was the first minicomputer: a totally new class of machine. But where did this computer come from, and what made it so different from the rest of the digital pack? Selected sources: https://americanhistory.si.edu/comphist/olsen.html - Smithsonian interview with Ken Olsen https://archive.computerhistory.org/resources/access/text/2019/03/102785079-05-01-acc.pdf - Computing in the Middle Ages https://archive.org/details/bitsavers_decBooksBeng_37322315 - Computer Egnineerling, Bell et al.…

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