Advent of Computing

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Welcome to Advent of Computing, the show that talks about the shocking, intriguing, and all too often relevant history of computing. Each episode we will dive into the shocking history of what makes current day technology work.

Sean Haas


    • May 11, 2025 LATEST EPISODE
    • every other week NEW EPISODES
    • 53m AVG DURATION
    • 171 EPISODES

    Ivy Insights

    The Advent of Computing podcast is an incredible resource for anyone interested in computer history. As someone who has always been fascinated by both libraries and computer history, I was instantly hooked on the first episode about the Mundanium. The host's extensive research and passion for the subject shines through in each episode, and I can't believe how much I've learned from listening to this podcast.

    One of the best aspects of The Advent of Computing is its well-researched content. The host clearly puts a lot of time and effort into gathering information about each topic, and it shows. The episodes are well-organized, providing a comprehensive overview of the subject matter while also incorporating enough technical details to be informative without overwhelming listeners. This podcast strikes a perfect balance between being accessible to those without a technical background and still satisfying the curiosity of tech enthusiasts.

    Furthermore, the topics chosen for each episode are interesting and relevant to the development of computers. From early clones like Columbia Data Products to exploring the origins of modern technology, there is always something intriguing to learn about in each episode. The host does a fantastic job of conveying why these topics are important and how they have shaped the technology we use today.

    On the downside, one could argue that some episodes may lack a bit more depth or technical detail for those with an advanced understanding of computer history. However, given that the podcast aims to cater to a broader audience, this can be seen as a necessary decision in order to make the content accessible and engaging for all listeners.

    In conclusion, The Advent of Computing is hands down one of the best computer history podcasts out there. It provides an enjoyable journey through significant moments in computer history, presented with careful research and enthusiasm. Whether you're already knowledgeable about computer history or just beginning your exploration into this fascinating field, this podcast is guaranteed to scratch all your special interest itches and leave you eagerly awaiting each new episode.



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    Latest episodes from Advent of Computing

    Episode 157 - Only S1 Users Will Survive!

    Play Episode Listen Later May 11, 2025 64:40


    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?  

    Episode 156 - RPG, a Different Paradigm?

    Play Episode Listen Later Apr 27, 2025 64:10


    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.

    Episode 155 - LINC

    Play Episode Listen Later Apr 13, 2025 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?

    Episode 154 - ACTing Up

    Play Episode Listen Later Mar 30, 2025 80:48


    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.

    Episode 153 - The Keypact Mystery

    Play Episode Listen Later Mar 17, 2025 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.

    Episode 152 - LIVE at VCF - Reviving Retro Panel

    Play Episode Listen Later Mar 2, 2025 60:06


    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/)

    Episode 151 - The Friden Flexowriter

    Play Episode Listen Later Feb 3, 2025 60:33


    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.  

    Episode 150 - Starting Windows Up

    Play Episode Listen Later Jan 20, 2025 65:06


    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.

    Episode 149 - IDRIS Is Not UNIX

    Play Episode Listen Later Jan 5, 2025 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

    Episode 148 - Is BLISS Ignorance?

    Play Episode Listen Later Dec 22, 2024 63:21


    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

    Episode 127 - Molecular Electronic Computer

    Play Episode Listen Later Dec 9, 2024 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

    Episode 146 - The Z4

    Play Episode Listen Later Nov 25, 2024 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

    Episode 145 - Zuse's Mysterious Machines

    Play Episode Listen Later Nov 11, 2024 60:39


    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

    Episode 144 - RABBITS

    Play Episode Listen Later Oct 27, 2024 21:20


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    Episode 143 - The Haunted Hard Drive

    Play Episode Listen Later Oct 20, 2024 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

    Episode 142 - OS and JEDGAR

    Play Episode Listen Later Oct 13, 2024 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

    mit os pdp jargon file
    Episode 141 - Computer Ruins Grocer

    Play Episode Listen Later Oct 6, 2024 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

    Episode 140 - Assembling Code

    Play Episode Listen Later Sep 29, 2024 63:46


    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

    Episode 139 - HUTSPIEL

    Play Episode Listen Later Sep 15, 2024 66:25


    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  

    Episode 138 - Type-It-Yourself

    Play Episode Listen Later Sep 1, 2024 63:15


    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  

    Episode 137 - Edge Notched LIVE

    Play Episode Listen Later Aug 18, 2024 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.

    Episode 136.5 - Data Center Disaster

    Play Episode Listen Later Aug 4, 2024 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.

    Episode 136 - Getting On TRAC

    Play Episode Listen Later Jul 21, 2024 74:40


    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!

    Episode 135 - XENIX

    Play Episode Listen Later Jul 7, 2024 67:04


    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!

    Episode 134 - Beyond the Punch

    Play Episode Listen Later Jun 23, 2024 64:10


    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.

    Episode 133 - LIVE from Intelligent Speech 2023

    Play Episode Listen Later Jun 9, 2024 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

    Episode 132 - The PDP-1

    Play Episode Listen Later May 26, 2024 75:43


    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.

    Episode 131 - Computer... Books?

    Play Episode Listen Later May 5, 2024 63:05


    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!

    Episode 130 - ALGOL, Part II

    Play Episode Listen Later Apr 21, 2024 75:32


    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

    Episode 129 - ALGOL, Part I

    Play Episode Listen Later Apr 7, 2024 64:54


    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  

    Episode 128 - Cryotrons LIVE!

    Play Episode Listen Later Mar 24, 2024 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

    Episode 127 - Nim

    Play Episode Listen Later Mar 11, 2024 60:32


    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

    Episode 126 - IBM Compatible (No, Not Those)

    Play Episode Listen Later Feb 19, 2024 73:47


    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/

    Episode 125 - US v IBM

    Play Episode Listen Later Feb 1, 2024 70:32


    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

    VCF SoCal - Interview with Micki and Steve

    Play Episode Listen Later Jan 20, 2024 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/

    Episode 124 - The Full 360

    Play Episode Listen Later Jan 15, 2024 63:31


    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

    Episode 123 - The Jupiter Ace

    Play Episode Listen Later Jan 1, 2024 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

    Episode 122 - To Edit Text

    Play Episode Listen Later Dec 18, 2023 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

    Episode 121 - Arguments Against Programming

    Play Episode Listen Later Dec 4, 2023 64:13


    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

    Episode 120 - Simply COSMAC

    Play Episode Listen Later Nov 13, 2023 63:08


    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

    Episode 119 - The Batch!

    Play Episode Listen Later Oct 29, 2023 60:28


    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

    Episode 118 - Viral Dark Ages

    Play Episode Listen Later Oct 15, 2023 75:35


    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

    Episode 117 - What's in a Byte?

    Play Episode Listen Later Sep 24, 2023 63:45


    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

    Episode 116 - Monte Carlo

    Play Episode Listen Later Sep 10, 2023 61:27


    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

    Episode 115 - Digital Lifeforms

    Play Episode Listen Later Aug 27, 2023 68:29


    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!

    Reading - The Story of Mel

    Play Episode Listen Later Aug 26, 2023 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.

    Episode 114 - The LGP-30: A Forgotten Machine

    Play Episode Listen Later Aug 15, 2023 66:06


    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

    Episode 113 - Prolog, Part II

    Play Episode Listen Later Jul 30, 2023 70:20


    I'm wrapping up my dive into Prolog with... Prolog itself! This episode I'm actually covering the development of Prolog, using all the natural language processing lore we covered last time. Along the way we will see how Prolog developed from a set of tools, and how those tools were generalized into a useful language. Selected Sources: http://alain.colmerauer.free.fr/alcol/ArchivesPublications/PrologHistory/19november92.pdf - The Birth of Prolog https://archive.org/details/introductiontoma0000hutc/mode/1up?q=%22q-systems%22&view=theater - An Introduction to Machine Translation

    Episode 112 - Prolog, Part I

    Play Episode Listen Later Jul 16, 2023 68:46


    I've been told I need to do an episode about Prolog. Well, here's the start of that process. To talk about Prolog we first need to come to grips with natural language processing, it's tools, and it's languages. This episode we are doing just that, going from ELIZA to Planner ro SHRDLU in an attempt to figure out how AI was first taught human tongues, where smoke and mirrors end, and where facinting programming begins.   Selected Sources:   https://dl.acm.org/doi/pdf/10.1145/365153.365168 - ELIZA   https://stacks.stanford.edu/file/druid:cm792pj8606/cm792pj8606.pdf - Planner   https://web.archive.org/web/20200725084321/http://hci.stanford.edu/~winograd/shrdlu/AITR-235.pdf - SHRDLU

    Episode 111 - To Boldly Transmit

    Play Episode Listen Later Jul 2, 2023 63:17


    Space is cool, in all meanings of the word. Not only is it wondrous, vast, and fascinating, it can also be a cold place. It's also a very useful place to put things. This episode we are looking at the first practical use of space: communication satellites.   Selected Source:   https://archive.org/details/BigBounc1960 - The Big Bounce   https://archive.org/details/dtic-ada-141865-ieee-centenial-journal-1984-ocr/page/n67/mode/2up - A Signal Corp Space Opera   https://history.nasa.gov/SP-4308/ch6.htm - The Odyssey of Project Echo

    Episode 110 - The Atari 2600

    Play Episode Listen Later Jun 18, 2023 67:58


    I don't usually cover video games. When I do, you know it's for a weird reason. This episode we are looking at the Atari VCS 2600, it's strange hardware, and how it fits into the larger story of the rise of microprocessors. These new tiny chips were already changing the world, but they brought along their own problems. Selected source: https://spectrum.ieee.org/atari-2600 - Inventing the Atari 2600 https://archive.computerhistory.org/resources/access/text/2012/09/102658257-05-01-acc.pdf - Al Alcorn Oral History https://www.digitpress.com/library/interviews/interview_bob_whitehead.html - Bob Whitehead Interview

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