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Hardware Technology

Interview with One of ENIACs Inventors 114

deeptrace writes "On the 60th anniversary of the ENIAC an old family friend of 'Pres' Eckert transcribed some interviews recorded before his death. Very interesting reading. They dispel a few myths, such as the lights didn't really dim when they turned it on, and the military officers did not salute ENIAC."
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Interview with One of ENIACs Inventors

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  • ARRRR, MATEY! (Score:5, Interesting)

    by Omikr0n ( 656115 ) * on Wednesday February 15, 2006 @11:05AM (#14724815)
    It's just a darn shame they stole all that technology, eh? Although Eckert disputes it at the end of the interview, the court found that: "...John Vincent Atanasoff and Clifford Berry had constructed the first electronic digital computer at Iowa State College in the 1939 - 1942 period. He had also ruled that John Mauchly and J. Presper Eckert, who had for more than twenty-five years been feted, trumpeted, and honored as the co-inventors of the first electronic digital computer, were not entitled to the patent upon which that honor was based. Furthermore, Judge Larson had ruled that Mauchly had pirated Atanasoff's ideas, and for more than thirty years had palmed those ideas off on the world as the product of his own genius." Full Q&A can be found here: http://www.scl.ameslab.gov/ABC/Trial.html [ameslab.gov] Court documents can be found here: http://www.cs.iastate.edu/jva/court-papers/index.s html [iastate.edu]
    • Bletchley Park (Score:5, Interesting)

      by Burb ( 620144 ) on Wednesday February 15, 2006 @11:08AM (#14724847)
      Or for that matter, the perennial controversy over whether honours for first digital computer should go to the British working at Bletchley Park on the Enigma decoders. I don't have a bias here (well, not much), but you need to remember that there were a several teams working on electronic digital computing around the world, and many of them were top-secret projects.
      • Comment removed (Score:5, Insightful)

        by account_deleted ( 4530225 ) on Wednesday February 15, 2006 @11:35AM (#14725059)
        Comment removed based on user account deletion
        • Yeah! The guys at Microsoft Encarta did know this for years and released it often enough!
        • I was born and live in the US, read world news, am routinely disgusted with the actions of my government, and yet I knew ENIAC was far from the first digital computer. Yet, Americans are not ignorant through and through, you know. The difference between myself and the bulk of my compatriots? I read, I avoid the american news networks and print media for international news, and steer clear of that myopic belief that the US = the world. There's still hope.
      • Re:Bletchley Park (Score:3, Interesting)

        The parent is of course refering to Colossus, which electronically replicated the Lorenze machine. (Lorenze machines worked on a similar mechanical-encryption principle as Enigma's, except they were larger, staionary machines intended for base-to-base encryption.) By the end of WWII there were ten Colossi in operation decrypting large spools of paper-tape recordings.

        However, even if they may be the first true-digital computers, they were kept secret far after the war, so thier potential influence is moot.

        ht [wikipedia.org]

      • The Turing bombs were electromechanical machines.
        • Re:Bletchley Park (Score:3, Informative)

          by Vanders ( 110092 )
          The Bombes wern't computers. The Colosus were. You should also note that the physical design of the machine doesn't matter all that much; all pre-tube machines (Most from that era) were electro-mechanical devices because they used relays as switching units.
      • by lophophore ( 4087 ) on Wednesday February 15, 2006 @12:26PM (#14725502) Homepage
        You need to look here:

        http://en.wikipedia.org/wiki/Zuse [wikipedia.org]

        Before you make your rash statements about the Colossus being first.

        • It's wiki. Give me 5 minutes and you'll be wrong. :)
        • Its time to stop the myth of Eniac being the first electronic programmmable computer. It is well established and generally accepted in the scientific and historic community that Konrad Zuse (from Germany) developed the worlds first electronic programmable computer, the Z3 in 1941 in Germany.

          In 1998, it was even proven that his Z3 computer was Turing Complete.

          Another good link is here [about.com]

      • The abacus was first. About 500BCE, I'm guessing, maybe older.

        http://www.ee.ryerson.ca/~elf/abacus/intro.html [ryerson.ca]

        http://www.ee.ryerson.ca/~elf/abacus/history.html [ryerson.ca]
      • Re:Bletchley Park (Score:3, Insightful)

        by ForemastJack ( 58751 )

        Honors over the "first" of anything are usually controversial -- and it's only going to get worse. Historically, there have been many convergences of technological development. This makes sense, if you think about it. Inventors, developers, thinkers are all products of the state of the art at the time they are working. Robert Heinlein, in (I think) The Door into Summer put it something like, "When it time to railroad, people start railroading." That's obviously a little deterministic, but it still true

      • He's the daddy!
    • Re:ARRRR, MATEY! (Score:5, Informative)

      by Voltageaav ( 798022 ) on Wednesday February 15, 2006 @11:13AM (#14724879) Homepage
      RTFA, "While there are controversies about who invented what, there is universal agreement that the ENIAC was the watershed project that showed electronic computing was possible."
    • Re:ARRRR, MATEY! (Score:5, Informative)

      by Dzimas ( 547818 ) on Wednesday February 15, 2006 @11:18AM (#14724928)
      In the interview, Eckert seems to imply that Atanasoff wasn't really worthy of receiving a patent because he had little more than test-bench ideas, wheras Mauchly and Eckert took their concepts and produced a machine that did cutting-edge scientific work for a decade. In a way, this points out many of the flaws with modern technology patents -- RIM would not be in the situation it is currently facing if the NTP lawyers were required to produce a working prototype of a wireless email system.

      The reason that everyone lauds ENIAC is that it was the first *meaningful* public application of a "pluggable/programmable" computer. Of course, a few folks at Bletchley Park knew that Tommy Flowers had built a tube-based computer in 1943-1944 to crack the German Lorenz codes. The British went on to build ten of them. And, incidentally, it used a parallel architecture.

    • Re:ARRRR, MATEY! (Score:5, Insightful)

      by LWATCDR ( 28044 ) on Wednesday February 15, 2006 @11:23AM (#14724963) Homepage Journal
      "It's just a darn shame they stole all that technology, eh?"
      1. No one person invented the computer.
      2. Eniac worked while Atanasoff's system didn't
      3. Was Eniac inspired by Atansoff's work? Probably. Was it a copy? No.

      • Considering when I attended Iowa State a group of engineers rebuilt a replica of the ABC and put it on tour around Iowa and the Smithsonian, I'd say it worked pretty well.

        The drum from the original is under plexiglass in the Computer Science center.
    • Not the point (Score:4, Insightful)

      by RealProgrammer ( 723725 ) on Wednesday February 15, 2006 @11:39AM (#14725094) Homepage Journal
      Putting together a machine like that is an amazing feat. Using other people's ideas is the hallmark of great engineers. Taking credit for other people's ideas is the hallmark of great losers.

      As TFA says, whether you think of Eckert and Mauchly as the first to build a computer or not, ENIAC is the "watershed event". A lot of people in the U.S. think of Henry Ford as the inventor of the automobile, even though if you press them they probably remember that he was not, by many years and an ocean.

      Dan Bricklin, inventor of the electronic spreadsheet, was sued by Lotus Corp. for violating the 'look and feel' of their 1-2-3 product with his Visicalc. Never mind that their entire product was based on his beautiful idea, he got sued out of business for copying their menu structure.

      What the courts decide and what actually happened are often not entirely in sync.
      • Dan Bricklin, inventor of the electronic spreadsheet, was sued by Lotus Corp. for violating the 'look and feel' of their 1-2-3 product with his Visicalc.

        VisiCalc was released in 1979, 1-2-3 on January 26, 1983.
      • IIRC, it was Borland that got sued over their Quatro Pro spreadsheet. The issue wasn't about the "look and feel" in general, it was about Borland creating a "compatibility mode" feature which - when enabled - duplicated the Lotus command structure (keystrokes and menu tree).

        Last I heard Lotus had won the case but got reversed on appeal. It was supposed to go to the SCOTUS but I don't recall if it did or not.
  • Sooo, (Score:4, Funny)

    by IAAP ( 937607 ) on Wednesday February 15, 2006 @11:13AM (#14724883)
    FTFA: By picking the right gear ratio you should get the right constants in the equation.

    So, if you popped the clutch, your constants may jump in value?

    Ok, Ok, I'm leaving!

  • by Anonymous Coward
    Q&A by Alexander Randall 5th

    FEBRUARY 14, 2006 (COMPUTERWORLD) - J. Presper Eckert

    There are two epochs in computer history: Before ENIAC and After ENIAC. The first practical, all-electronic computer was unveiled on Feb. 14, 1946, at the University of Pennsylvania's Moore School of Electronics. While there are controversies about who invented what, there is universal agreement that the ENIAC (Electrical Numerical Integrator And Calculator) was the watershed project that showed electronic computing was pos
  • by the_demiurge ( 26115 ) on Wednesday February 15, 2006 @11:15AM (#14724894) Homepage
    What's the zaniest thing you did while developing ENIAC?

    The mouse cage was pretty funny. We knew mice would eat the insulation off the wires, so we got samples of all the wires that were available and put them in a cage with a bunch of mice to see which insulation they did not like. We only used wire that passed the mouse test.

    This should be taken to heart by forward-thinking engineers everywhere.
  • You said the largest tube gadget in 1943 was the Nova Chord electronic organ. What did ENIAC use?

    ENIAC had 18,000 vacuum tubes. The tubes were off the shelf; we got whatever the distributor could supply in lots of a thousand. We used 10 tube types, but could have done it with four tube types; we just couldn't get enough of them. We decided that our tube filaments would last a lot longer if we kept them below their proper voltage. Not too high or too low. A lot of the circuits were off the shelf, but I
  • by Rob T Firefly ( 844560 ) on Wednesday February 15, 2006 @11:24AM (#14724969) Homepage Journal
    I'm looking to overclock my ENIAC. Any tips?

    Also, does anyone have a copy of Gentoo on punch cards I can borrow?
  • by Anonymous Coward
    General: This is the ENIAC 3000. It launches missiles automatically, and it has three distinct varieties of orders.
            [presses a button]
    ENIAC: Men, take that hill.
            War is hell.
            Don't shoot till you see the whites of their eyes.
    Colonel 1: Man, that thing's great!
    Colonel 2: Don't salute the machine!
  • Have your moment of glory, then remember that the first true programmable computer was invented in Manchester, England (the Manchester University Mark 1 A.K.A. 'The Baby'). ENIAC had to be reprogrammed by moving countless cables around, in the words of one of the operators "each time we changed the software we had to almost completely rebuild the machine". The Manchester University machine stored both its program and data in memory using special cathode ray tubes.

    See http://en.wikipedia.org/wiki/Manchester_ [wikipedia.org]
    • I will never understand this stupid "america vs europe" fight. I'm spanish and I've always seen americans as europeans. Hell, america founding fathers were european and all the native culture was sent (literally) to hell. America is just europa expanded to another place, there's no reason to fight "america vs europa".
    • ENIAC was ... commissioned on May 17, 1943. It was unveiled on February 14, 1946 at the University of Pennsylvania

      The Manchester Mark I was one of the earliest electronic computers, built at the University of Manchester in England, in 1949.

      So, uh, what's the story? ENIAC clearly came before the Mark 1 by at least 3 years.... and the ENIAC was programmable, even if it meant moving plugs around. So in terms of programmable computers, ENIAC was clearly first. It might not have been the first to store programs
      • it really all comes down to how you define computer (a bit like first aeroplane and the like come down to exactly how you define an aeroplane)

        Where do you draw the line between assembling units into a special purpose machine and a computer with a program?
    • by Anonymous Coward
      The Manchester `Baby' was officially the `Small scale experimental computer', not the Mark 1. The Mark 1 was the second computer built at Manchester. It was based on the `Baby', but was a lot more sophisticated - the Mk 1 had a magnetic drum store, for example. Not file store, but for virtual memory. Yep, the first practical programmable electronic digital computer had something like virtual memory. More here: http://www.computer50.org/ [computer50.org]
    • I don't think your post makes sense. The Manchester Mark I was constructed post-ENIAC. Even though it might have been in development before, so it could count as a parallel discovery, it wasn't first by anyone's account.

      The first Turing-complete machine actually constructed (to the best of both my and Wikipedia's knowledge) was the Z3, built by Konrad Zuse in 1941, in Germany. Nazi Germany. It was blown up in 1944, so it probably can't really be counted as the progenitor of modern computing; however, if you
  • Someday I'll write a book on who really invented the computer. It wasn't Atanasoff or Von Neumann. We did it.

    I really think that J. Presper Eckert (the ENIAC inventor ) and Von Neumann both deserve credit. Eckert said it himself in the interview:


    Was ENIAC programmable?

    Yes and no. We programmed the machine by plugging wires in from place to place. That's not hard-wired; it's not software; it's not memory. It's pluggable programming. And we had switches to set the functions.


    However Von Neumann did a lot of theoretical work on algorithms (he is cited by Knuth on the merge sort algorithm) and cellular automata.

    Certainly Von Neumann was ahead of his time, he was already thinking in general-purpose algorithms, while the ENIAC only worked to solve differential equations.

    I'm not trying to discredit anybody, but IMHO Eckert should have chose the wrong wording when claiming to be *THE* inventor of the computer.
  • by leroybrown ( 136516 ) on Wednesday February 15, 2006 @11:39AM (#14725096) Homepage
    During the summer of 2004, my girlfriend at the time had a job taking care of an old guy at his beach house on Long Beach Island, NJ. The old guy grew up in Philly society back in the 30's and 40's and was part of the Doan family, owners of a prominent Chevrolet dealership. I was living at the house too and got to talking to the guy one day and told him I was involved with computers. Then he starts telling me all about how his wife (who had died recently) had dated a guy named Pres Eckert who had invented "some computer". I told him it was the ENIAC and pressed him for details. He told me his wife had dumped Pres because he was always taking her to see the machine and would make her sit around waiting for him to fix some problems before they went on dates. So, this could probably be the first instance of a guy being dumped for being a computer geek.

  • by theurge14 ( 820596 ) * on Wednesday February 15, 2006 @11:40AM (#14725102)
    We built ENIAC in a room that was 30 feet by 50 feet, at the Moore School in West Philadelphia on the first floor.

    And on the second floor, we have a room 10 feet by 15 feet where we built the ENIAC Mini, which of course since it doesn't have a teletype, punch card reader or mouse, is more affordable.
  • FTFA:
    Randall, former head of the Boston Computer Exchange and the East West Education Development Foundation, currently teaches communication at the University of the Virgin Islands.
    Instead I spent 4 years in Pittsburgh!!!
  • Looking back at ENIAC we can now say that the first version of Scorched Earth was born.
  • They dispel a few myths, such as the lights didn't really dim when they turned it on, and the military officers did not salute ENIAC.

    Hoestly, I'm amazed they even felt the need to dispel such myths. Anyone who believed either is an idiot. Well, OK, I suppose maybe people could be excused for not having any sense of how electricity works, or how the difference in scale between a room-sized computer and the entire electrical grid of Philadelphia; But the saluting thing? Come on. Even the basest fool could q

    • Saluting is more akin to doffing one's hat than a handshake.

      • Saluting is more akin to doffing one's hat than a handshake.

        True, but the hypothetical idiots to which I was referring would probably not be familiar with cap-doffing, what with popular "hat culture" being reduced to a few slack-jaws wearing sideways baseball caps all the time-- indoors, outdoors, when being introduced to ladies, at funerals, etc. Point is, they're all salutory gestures and even the foolest of fools knows those are for people, not machines.

  • I have direct knowledge of the first major program they ran with the ENIAC, because my dad was there when they did it. It was a program to calculate the first 1000 digits of Pi... and it worked too. They had a process by which you had to review any functions that were going into the computer before you put them in... if only we still did that. Expensive but extremely effective at reducing software bugs in code... the only time the machine was down was for tubes and hardware.
    • >It was a program to calculate the first 1000 digits of Pi.

      Seems Unlikely

      The ENIAC had only 20 registers, holding 10 decimal digits each. Kinda hard to generate 1000 digits with only 200 digits of storage. There are algorithms that generate sequential digits of Pi, but I doubt if they were well known at that time.

      >They had a process by which you had to review any functions that were going into the computer before you put them in...

      Well, of course, because it took a lot of time and work to rew



    • "They had a process by which you had to review any functions that were going into the computer before you put them in... if only we still did that.

      Yes ... if only we had some kind of modern equivalent of that convention... we could call it something cleverly outlandish, like perhaps, a code review . Ahh ... but never mind ... it's a crazy idea that would never work ;-)
  • by christurkel ( 520220 ) on Wednesday February 15, 2006 @12:29PM (#14725531) Homepage Journal
    The Eniac was a team effort; my grandfather was in the team that helped solve the math of the beast; not just computation but also thing like making sure the Eniac didn't need the power of a small city to work.
    When he died, we found some of his notes about the Eniac in old notebook which we donated to the Smithsonian.
    • When he died, we found some of his notes about the Eniac in old notebook which we donated to the Smithsonian.

      Holy crap? No eBay? No book? No thought of monetary reward? Someone actually did something selfless for the betterment of everyone?

      Seriously, though, thanks man. I for one, definitely appreciate it.
  • Interestingly enough, the first piece of software proposed for the ENIAC has yet to be finished.
    Apparently the Duke Nukem Forever team are finding backwards-compatibility with the old ENIAC hardware a bit tricky.
  • ...a real interview, with answered questions and everything.

    C'mon CmdrTaco! Don't you have that ouija-board Apache kernel module working right yet?

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