Advent Of Computing podcast

Advent of Computing

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Tech History Sean S Haas Sean Haas Computer

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Travel can do amazing things: broaden horizons, build relationships, and rejuvenate the soul. But often, those experiences come at a cost. This is Peak Travel, a new podcast from WHYY about how travel shapes communities in hot-spots around the world. We’ll share the wonder that comes with exploring new places, as well as the harm that our worst travel habits can cause. And we’ll try to figure out how we can do it better. Each episode transports you to a new destination. You’ll meet the people who call that place home, hear their stories, and come to understand how tourism has changed their everyday lives. Supported by rich, on-location sound from around the world, Peak Travel unpacks the $1.9 trillion travel industry and its impact on people and the planet.

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Contenuto fornito da Sean S Haas and Sean Haas. Tutti i contenuti dei podcast, inclusi episodi, grafica e descrizioni dei podcast, vengono caricati e forniti direttamente da Sean S Haas and Sean Haas o dal partner della piattaforma podcast. Se ritieni che qualcuno stia utilizzando la tua opera protetta da copyright senza la tua autorizzazione, puoi seguire la procedura descritta qui https://it.player.fm/legal.

Welcome to Advent of Computing, the show that talks about the shocking, intriguing, and all too often relevant history of computing. A lot of little things we take for granted today have rich stories behind their creation, in each episode we will learn how older tech has lead to our modern world.

… continue reading

169 episodi

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

Advent of Computing

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Advent of Computing

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updated 6 giorni fa

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Contenuto fornito da Sean S Haas and Sean Haas. Tutti i contenuti dei podcast, inclusi episodi, grafica e descrizioni dei podcast, vengono caricati e forniti direttamente da Sean S Haas and Sean Haas o dal partner della piattaforma podcast. Se ritieni che qualcuno stia utilizzando la tua opera protetta da copyright senza la tua autorizzazione, puoi seguire la procedura descritta qui https://it.player.fm/legal.

Welcome to Advent of Computing, the show that talks about the shocking, intriguing, and all too often relevant history of computing. A lot of little things we take for granted today have rich stories behind their creation, in each episode we will learn how older tech has lead to our modern world.

… continue reading

169 episodi

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

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Episode 155 - LINC 58:21

6 giorni fa58:21

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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

20 giorni fa1:20:48

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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

5 weeks fa55:07

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55:07

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

7 weeks fa1:00:06

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1:00:06

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

11 weeks fa1:00:33

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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

13 weeks fa1:05:06

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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

15 weeks fa58:47

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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

17 weeks fa1:03:21

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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

19 weeks fa54:48

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54:48

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

21 weeks fa58:00

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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

23 weeks fa1:00:39

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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

25 weeks fa21:20

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21:20

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Episode 143 - The Haunted Hard Drive 21:42

26 weeks fa21:42

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21:42

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

27 weeks fa19:10

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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

28 weeks fa18:36

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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

29 weeks fa1:03:46

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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

31 weeks fa1:06:25

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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

33 weeks fa1:03:15

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1:03:15

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

35 weeks fa52:33

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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

37 weeks fa18:08

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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

39 weeks fa1:14:40

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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

41 weeks fa1:07:04

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1:07:04

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

43 weeks fa1:04:10

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1:04:10

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

45 weeks fa41:15

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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

47 weeks fa1:15:43

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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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Episode 131 - Computer... Books? 1:03:05

50 weeks fa1:03:05

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1:03:05

I've been feeling like rambling, so it's time for a classic ramble. This time we are looking at the origins of books about computers. More specifically, computer books targeted at a general audience. Along the way we stumble into the first public disclosure of digital computers, the first intentionally unimportant machine, and wild speculation about the future of mechanical brains. No sources listed this time, because I want the journey to be a surprise!…

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Episode 130 - ALGOL, Part II 1:15:32

52 weeks fa1:15:32

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1:15:32

This is a hefty one. I usually try to keep things as accessible as possible, but this time we have to get a little more technical than usual. We are picking up in 1964, with the first proposals for a new version of ALGOL. From there we sail through the fraught waters of ALGOL X, Y, W, and finally 68. Along the way we see how a language evolves over time, and how people and politics mesh with technical issues. Selected Sources: https://dl.acm.org/doi/pdf/10.5555/1061112.1061118 - Successes and Failures of the ALGOL Effort https://sci-hub.se/10.1109/MAHC.2010.8 - Cold War Origins of IFIP https://archive.computerhistory.org/resources/text/algol/algol_bulletin/ - The ALGOL Bulletin…

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Episode 129 - ALGOL, Part I 1:04:54

1 year fa1:04:54

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1:04:54

ALGOL is one of those topics that's haunted the show for a while. It comes up any time we talk about programming languages, and with good reason. Many of the features and ideas found in modern languages have their roots in ALGOL. Despite that influence, ALGOL itself remains somewhat obscure. It never reached the highs of a C or LISP. In this series we are going to look at ALGOL from 1958 all up to 1968, keeping a careful eye on how the language evolved, how it's problems were addressed, and how new problems were introduced. Selected Sources: https://www.softwarepreservation.org/projects/ALGOL/paper/Backus-Syntax_and_Semantics_of_Proposed_IAL.pdf - Backus, 1958 IAL report https://algol60.org/reports/algol60_rr.pdf - ALGOL 1960 Report https://dl.acm.org/doi/pdf/10.5555/1060960.1060966 - Cleaning Up Algol…

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Episode 128 - Cryotrons LIVE! 41:49

1 year fa41:49

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41:49

Originally presented at VCF SoCal in February of 2024. The cryotron, a superconductive switch, almost revolutionized computing. It's one of those fascinating near misses. In this episode we are talking about the history of the cryotron, how the NSA and supercomputing factors into the mix, and the current state of research into the topic. Did the NSA actually construct a supercomputer that ran in a vat of liquid helium? The answer is... maybe? Video of this talk: https://youtu.be/FqzSGTZ3TMU…

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Episode 127 - Nim 1:00:32

1 year fa1:00:32

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1:00:32

This is going to be a wild rambling ride. In 1939 a computer called Nimatron was made. It was one of the earliest digital electronic computers in the world. It did one thing: play a game called Nim. Over a decade later, in 1951, another Nim machine hit the scene. This computer called Nimrod, was designed to demonstrate how computers worked... by playing a game of Nim. These machines, humble as they may sound, end up deeply complicating the history of computing. Join me as I, once again, muddy the long arc of progress. Selected Sources: https://archive.org/details/faster-than-thought-b.-v.-bowden - Faster Than Thought https://www.goodeveca.net/nimrod/NIMROD_Guide.html - Faster Than Thought…

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Episode 126 - IBM Compatible (No, Not Those) 1:13:47

1 year fa1:13:47

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1:13:47

This episode wraps up the System/360 trilogy by taking things back to where they started for me. We will be looking at System/360 clones, how they could exist, why they existed, and why IBM didn't crush them. We close with a discussion of how these earlier clones impact our understanding of the IBM PC story. The truth is, by 1981 IBM was no stranger to clones. This is the culmination of a wild story, so prepare! Selected Sources: https://archive.org/details/iclbusinesstechn0000camp/mode/1up - ICL: A Business and Technical History https://archive.org/details/impactreportamdaunse/page/1/mode/1up - Impact Report by INPUT https://www.stayforever.de/ibm-pc-a-conversation-with-dr-david-bradley/…

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Episode 125 - US v IBM 1:10:32

1 year fa1:10:32

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1:10:32

My coverage of the IBM System/360 continues! In this episode we look at US v IBM, and the fallout that surrounded the release of the System/360. By 1969 IBM already had a history of antitrust litigation. What was IBM doing to upset the Department of Justice, and how does it tie in to the larger story of clone computers? Selected Sources: http://www.cptech.org/at/ibm/ibm1956cd.html - 1956 Consent Decree https://supreme.justia.com/cases/federal/us/298/131/ - 1936 Consent Decree https://archive.org/details/foldedspindledmu00fish/page/n5/mode/2up - Folded, Spindled, and Mutilated…

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VCF SoCal - Interview with Micki and Steve 29:31

1 year fa29:31

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29:31

In this episode I sit down and talk with Micki and Steve about VCF SoCal, a new Vintage Computer Festival! The event is taking place in Orange, California on Febuary 16th and 17th. VCFs are a wonderful time, and a great opportunity to meet up with other retro enthusiasts. The weekend will be filled with exhibits and speakers, including myself! I will be in attendence, and talking about some super cool technology. Stick around until the end of the interview for the full details. More information on VCF SoCal can be found at: https://www.vcfsocal.com/…

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Episode 124 - The Full 360 1:03:31

1 year fa1:03:31

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1:03:31

The release of the IBM System/360 represents a major milestone in the history of computing. In 1964 IBM announced the 360 as the first family of compatible computers. Users could choose a system that was just the right size for their needs, mix and match peripherals, and have no fear of future upgrades. If you started on a low-end 360 you could move up to a top of the line model and keep all your software! Something like this had never been done before. Such a watershed moment resulted in interesting cascading effects. In this episode we will look at the 360 itself. In the coming weeks we will be examining how it shaped and dominated the market, how it led to a federal antitrust suit, and how a mysterious series of clone computers survived in uncertain times. Selected Sources: https://spectrum.ieee.org/building-the-system360-mainframe-nearly-destroyed-ibm https://archive.computerhistory.org/resources/access/text/2012/11/102658255-05-01-acc.pdf - Fred Brooks Oral History https://archive.computerhistory.org/resources/access/text/2017/11/102655529-05-01-acc.pdf - 14K Days…

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Episode 123 - The Jupiter Ace 57:35

1 year fa57:35

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57:35

Released in 1982, the Jupiter Ace is a fascinating little computer. It's hardware isn't much to write home about. It's just an 8-bit microcomputer very much in line with other systems of the era. Where it shines is it's software. In a period when most home computer ran some version of BASIC the Ace was using Forth. On the surface that might sound like a trivial difference, but that one deviation from the norm made all the difference in the world. Selected Sources: https://www.theregister.com/2012/09/21/jupiter_cantab_jupiter_ace_is_30_years_old - The Register article on the Ace https://jupiter-ace.co.uk/documents_index.html - Every other Ace resource you could ever want…

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Episode 122 - To Edit Text 59:08

1 year fa59:08

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59:08

Tools are the most important programs in the world. Without quality tools it's impossible to write quality software. One of those most important of those tools, and the most hotly coveted, is the text editor. These programs offer us a window into the digital world. It's no wonder that programmers the world over basically live inside text editors. In this episode will discuss when exactly that digital window was opened. When did text editors first appear? What forms did they take? Selected Sources: https://www.computerhistory.org/pdp-1/_media/pdf/DEC.pdp_1.1960.102650331.pdf - Colossal Typewriter Manual https://www.si.edu/media/NMAH/NMAH-AC1498_Transcript_StephenPiner.pdf - Piner Oral History https://opost.com/tenex/anhc-31-4-anec.pdf - The Beginnings of TECO…

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Episode 121 - Arguments Against Programming 1:04:13

1 year fa1:04:13

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1:04:13

Most accounts of the early history of programming languages all share something in common. They all have a sentence or two explaining how there was great resistance to these new languages, but eventually all programmers were won over. Progress was made, despite the forces of counterrevolutionaries. What you won't find in most histories are the actual arguments these counterrevolutionaries made. This episode we are looking at those arguments. I've tracked down a handful of papers that argue against digital progress. Are these truly cursed articles, or is there something to be learned from arguments against programming? Selected Sources: https://dl.acm.org/doi/pdf/10.1145/1455270.1455272 - Why Not Try A Plugboard? https://dl.acm.org/doi/pdf/10.1145/367390.367404 - Comments from a FORTRAN User https://dl.acm.org/doi/pdf/10.1145/320932.320939 - Methods of Simulating a Differential Analyzer on a Digital Computer…

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Episode 120 - Simply COSMAC 1:03:08

1 year fa1:03:08

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1:03:08

Have you ever opined for a simpler time? Have you ever wanted a computer that you can understand all the way down to the silicon? Then RCA's COSMAC might be the architecture for you! COSMAC was a simplified computer architecture designed in the early 70s. It's tiny, cheap, and built to be easy to understand. But is the chip actually useful? Selected Sources: https://archive.org/details/manualzilla-id-5721710/page/26/mode/1up?view=theater - All the ELF articles in one place! https://sci-hub.se/10.1109/MC.1974.6323475 - A Simplified Microcomputer Architecture…

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Episode 119 - The Batch! 1:00:28

1 year fa1:00:28

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1:00:28

This episode we are looking at a ghost of bygone days: batch processing! Before fancy terminals peppered computer rooms, before there was a microcomputer on every desk, there was the batch. In this non-interactive form of computing a user could wait hours, days, or even weeks to get a chance at computer time. Machines were kept well away from programmers, guarded by digital clerics. Why did such an arrangement exist? And did it ultimately help the programmer? Selected Sources: https://multicians.org/thvv/compatible-time-sharing-system.pdf - Compatible Timesharing System, 15th Anniversary https://sci-hub.se/10.1109/MAHC.1983.10026 - Rykman on GM-NAA I/O https://ethw.org/First-Hand:Operating_System_Roots - Operating System Roots…

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Episode 118 - Viral Dark Ages 1:15:35

2 years fa1:15:35

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1:15:35

It's finally Spook Month here on Advent of Computing! To kick things off I'm tackling a bit of a mystery. Between 1972 and 1982 there is only one well documented virus. This period is book ended with plenty of sources and, yes, even viruses. But this decade long span of time has almost nothing! Was this era truly safe from the grips of malicious code? Or is there a secret history lurking just beneath the surface? Selected Sources: https://dl.acm.org/doi/pdf/10.1145/358453.358455 - Worms at Xerox PARC! https://archive.org/details/crimebycomputer0000park - Crime by Computer https://archive.org/details/dr_dobbs_journal_vol_05_201803/page/n89/mode/2up - Programming Pastimes and Pleasures…

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Episode 117 - What's in a Byte? 1:03:45

2 years fa1:03:45

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1:03:45

Byte has to be one of the most recognizable parts of the digital lexicon. It's an incantation that can be recognized by even the uninitiated. But where does the byte come from? Has it always existed, or did it more recently come into being? And, more specifically, why is a byte 8 bits? Is it some holdover from long ago, or is there some iron clad rule of 8's? Selected Sources: https://archive.org/details/byte-magazine-1977-02/page/n145/mode/1up?view=theater - Buchholz on the "byte" in BYTE! https://sci-hub.se/10.1049/pi-3.1949.0018 - A STORAGE SYSTEM FOR USE WITH BINARY-DIGITAL COMPUTING MACHINES https://ia600208.us.archive.org/32/items/firstdraftofrepo00vonn/firstdraftofrepo00vonn.pdf - The First Draft of a Report on EDVAC…

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Episode 116 - Monte Carlo 1:01:27

2 years fa1:01:27

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It's finally time! In this episode we are looking at the Monte Carlo method, perhaps the first practical computer program that could outpace human capability. The best part: the method relies on a random walk to reach a statistically valid answer! Selected Sources: https://www.osti.gov/servlets/purl/10596 - Igniting the Light Elements https://library.lanl.gov/cgi-bin/getfile?00326866.pdf - The Beginning of the Monte Carlo Method, Nick Metropolis…

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Episode 115 - Digital Lifeforms 1:08:29

2 years fa1:08:29

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1:08:29

I will admit, the title here is a bit of click bait. In the early 1950s a researcher named Nils Aall Barricelli started in on a bold project. His goal was to simulate evolution on a computer and, in doing so, create a perfect lab to study evolutionary processes. What he found was astonishing. Given a simple rule set these interesting patterns emerged. He called them symbioorganisms. Despite being simple numeric constructs, they exhibited many properties of living things. Did Barricelli create a digital form of life? Selected Sources: https://sci-hub.se/10.1007/BF01556771 - Numerical Testing of Evolution Theories. Please, just read this paper and be amazed!…

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Reading - The Story of Mel 11:01

2 years fa11:01

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11:01

This episode is simply a reading of the Story of Mel. I opened last episode with an excerpt, but didn't feel right leaving it at that. So, I present, the Story of Mel as written by Ed Nather and preserved in the Jargon file.

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Episode 114 - The LGP-30: A Forgotten Machine 1:06:06

2 years fa1:06:06

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1:06:06

In 1956 Librascope released the LGP-30, a truly wild machine. It was, for the time, the most simple and cheap machine that could actually be useful. It was the size of a desk when contemporary machines took up small rooms. It plugged into a normal wall outlet while other machines requires special power feeds. It was, perhaps, the first hint of a personal computer. And at its heart was a magnetic drum that only a true programmer could love. Selected Sources: http://www.catb.org/jargon/html/story-of-mel.html - The Story of Mel https://sci-hub.se/10.1109/TEC.1957.5221555 - Frankel's MINAC Paper http://www.hp9825.com/html/stan_frankel.html - A Biography of Frankel…

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