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Happy Birthday, UNIVAC I

Daniel Goldman writes "Today is the 53rd birthday of the UNIVAC I (UNIVersal Automatic Computer I). The UNIVAC I was delivered to the Census Bureau in 1951. It weighed some 16,000 pounds, used 5,000 vacuum tubes, and could perform about 1,000 calculations per second. It was the first American commercial computer, as well as the first computer designed for business use. The first few sales were to government agencies, the A.C. Nielsen Company, and the Prudential Insurance Company. It could retain a maximum of 1000 numbers and was able to add, subtract, multiply, divide, sort, collate and take square and cube roots. Its transfer write/read to and from magnetic tape was 10,000 characters per second."

68 of 241 comments (clear)

  1. That would make a great story... by lightspawn · · Score: 4, Insightful

    3 years ago.

    These things don't become "news" every year.

    1. Re:That would make a great story... by Anonymous Coward · · Score: 4, Funny

      Well, maybe, but 53 is a larger number than 50... plus, it's a prime number... :-)

    2. Re:That would make a great story... by Freefall90 · · Score: 4, Funny

      As long as we're recognizing birthdays at arbitrary years, we should do it in true /. fashion...in powers of 2. Let's see something when the 64th birthday rolls around.

    3. Re:That would make a great story... by Anonymous Coward · · Score: 3, Funny
      That's a basist viewpoint.

      I look forward to the day when all numbers are judged not by what other numbers divide them, but by their own magnitude. Each number has its own unique contribution to make, and 53 is certainly not a lesser number than 50.

    4. Re:That would make a great story... by lightspawn · · Score: 3, Funny

      Each number has its own unique contribution to make, and 53 is certainly not a lesser number than 50.

      I've got a 53 dollar bill right here saying you're wrong.

      Oh wait, actually I don't.

    5. Re:That would make a great story... by bluethundr · · Score: 3, Funny

      Exactly... there are a lot of old computers out there and a 53rd birthday is nothing special (nor, really, is a 50th birthday, but we do attach meaning to that)
      I'm totally with you man. However, I will be looking forward to it's 0x37 bday on 0xE067D6.

      --
      Quod scripsi, scripsi.
  2. where is it now? by 2057 · · Score: 4, Interesting

    I'd love to see this beast live and crunching numbers... anyone, know where its grave is or if they have it running

    --
    For The Best Jazz/Hip-hop fusion > COlD DUCK
    1. Re:where is it now? by greechneb · · Score: 4, Informative

      The original UNIVAC is now on display in the Smithsonian Institution in Washington

    2. Re:where is it now? by Tranzig · · Score: 3, Informative

      I don't think it would worth to keep UNIVAC running, do to it's massive power consumption and need for contionus maintenance.
      Here is a site about UNIVACs today that might be interesting for you.

    3. Re:where is it now? by Rick.C · · Score: 4, Interesting
      I'd love to see this beast live and crunching numbers

      Back in 1951 there were factories that pumped out vacuum tubes by the millions. That was convenient, because Univac burned out tubes by the thousands.

      Firing up an old Univac would require firing up some old tube factories, too.

      --
      You were 80% angel, 10% demon. The rest was hard to explain. - Over The Rhine
      "Math in a song is good."-Linford
    4. Re:where is it now? by bhtooefr · · Score: 4, Interesting

      What about a UNIVAC emulator? You could even hook up equivalents of the peripherals to it, and have a somewhat realistic experience without blowing tubes.

    5. Re:where is it now? by ackthpt · · Score: 5, Interesting
      I'd love to see this beast live and crunching numbers... anyone, know where its grave is or if they have it running

      When my Explorer Post was given an old computer to play with (a DEC PDP-3) we found, after getting it to do a few simple things, that disposing of it even in the late 70's was a hazardous/toxic waste issue. As "Love Canal" had already met with public attention, and commercial electrolytes showing up in cattle, we had either the choice of paying transporation to send it to a museum which would have taken it or pay to dispose of it. Since Dow was our Post sponsor, they were willing to bundle it up with other electronic gear for proper disposal.

      As much as these old beasts are fascinating, they're a pain to get rid of.

      --

      A feeling of having made the same mistake before: Deja Foobar
    6. Re:where is it now? by john82 · · Score: 3, Funny

      My wife works for Prudential's former mortgage business unit (since acquired by a certain stagecoach company). Judging from the interface and performance (or lack thereof), I think I can say without equivocation that Prudential's UNIVAC is still in service.

      The other giveaway is the large coal chute on the back side of the building.

    7. Re:where is it now? by MdotCpDeltaT · · Score: 5, Interesting

      My dad used to do tech service on the Univac in Kansas City at the USDA building. (It took an entire building to just hold the computer.) One Christmas he took me on a tour of the computer. They had programmed the different pieces of equipment to make their distinct noises to play Christmas Carols. Also got a real tour of the computer - from the inside. We walked through one area where I was told that if I tripped, to grab a cable that would cut the power to the computer to keep from get electricuted when I hit the tubes. All in all a pretty fascinating tour,

    8. Re:where is it now? by Waffle+Iron · · Score: 5, Interesting
      I was reading about the U.S. airforce's SAGE systems a while ago. They built a couple of dozen of these tube-based computers that consumed ~1 megawatt each. The last ones weren't taken offline until the 1980s.

      The funny part is that these were built to coordinate air defenses against a Soviet bomber strike, but towards the end of their life they had to buy replacement tubes from countries in the Soviet bloc because they were the only places that still manufactured them.

    9. Re:where is it now? by DoraLives · · Score: 2, Interesting
      yes but would it run linux?

      Dunno, but I'm pretty sure it wouldn't run windows.

      By the way, my mom used to work for Univac as a stenographer, out on Cape Canaveral back in the 50's. She'd bring home boxes of punched tapes, punch cards, and all the rest of the detritus of mid 20th century computing. We thought we were the hot shit playing around with that stuff as kids. Space Age! Whoa!

      --
      Is it fascism yet?
  3. 1000 numbers by Quill_28 · · Score: 4, Funny

    Yes, but what is the range of those numbers?

    1. Re:1000 numbers by mikael · · Score: 4, Informative

      From The Case 1107

      The central processor was a 36 bit architecture, capable of executing most simple arithmetic instructions in one 4 microsecond cycle time. Multiplication of two 36-bit integers took 12 microseconds, and division of a 72-bit dividend by a 36-bit divisor 31.3 microseconds. The processor performed 36-bit single precision floating point arithmetic in hardware, but did not implement double precision floating point.

      From Univac I

      The UNIVAC's word size was 72 data bits, which held eleven digits plus a sign, plus one parity bit for each six data bits, giving a total of 84. The mercury delay line memory amounted to 1000 words. Besides numbers, the UNIVAC could represent alphanumeric data (letters of the alphabet and some punctuation marks) using six bits for each character with twelve characters to the word. Codes were assigned for the letters of the alphabet and punctuation marks, such as 010100 for A, 010101 for B, 010110 for C and so on.

      According to Why do We need a floating-point arithmetic standard?

      Univac 110x float:

      Underflow limit = 2^-129 ~ 1.5 x 10^-39
      Overflow limit = 2^27 ~ 1.7 x 10^8

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    2. Re:1000 numbers by k_yarina · · Score: 2, Informative

      The 1107 was not the Univac I, nor was the architecture similar. The story goes that Univac numbered their machines from 1 to 12. They didn't want to call something the Univac 13, so they named it the 1101, or 13 in binary. The 1101 evolved into the 1107, 1108, etc, and still lives on as the 2200 series. The Univac FASTRAND II drum, supposedly made of machined sewer pipe, was used on the early 1100 machines. It had 192 positions of 64 tracks of 64 sectors of 36 bit words each, and was the primary storage device on the 1107s I worked on in the early 70s.

    3. Re:1000 numbers by mikael · · Score: 3, Informative

      The original manual can be found at bitsavers.org.

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
  4. Well, by Anonymous Coward · · Score: 5, Funny

    Was it so expensive that only the five richest kings of Europe could afford it?

    1. Re:Well, by soft_guy · · Score: 2, Funny

      Was it so expensive that only the five richest kings of Europe could afford it?

      No. You must be thinking of the Apple Lisa.

      --
      Avoid Missing Ball for High Score
  5. And yet by Anonymous Coward · · Score: 5, Funny

    after all these years, it STILL doesn't have decent 3D hardware support video drivers! Bastards!

  6. I remember UNIVAC I by Animats · · Score: 3, Interesting

    I wrote about this back on the 50th anniversary.

  7. I started my career on Univac / Unisys by uid100 · · Score: 4, Interesting

    What a great experience - a punch card reader was right next to the disk cache cabinet. Univac consoles are still my favorite "clicky" style keyboards. The Univac 1170 had dials for choosing the tape drive for IPL, switches for the memory banks and a small black button to initiate the IPL. Lots of flashing LED's to tell us what was going on. This was to support weather forcasting in the USAF.

    --
    ...yup...
  8. Yes that's good and all by Anonymous Coward · · Score: 4, Funny

    but this doesn't help much.
    Its transfer rate to and from magnetic tape was 10,000 characters per second.
    How many Libraries of Congress is that??

    /totally serious

  9. Some more specs/info by fuzzix · · Score: 5, Informative

    from the venerable old-computers.com

    1. Re:Some more specs/info by randyest · · Score: 2, Interesting

      Maybe I missed it, but I didn't see a mention of these facts or power specs anywhere at old-computers.com or in the links from the post:

      - The UNIVAC became famous when it was use by the US Census Bureau to calculate the results of the 1952 presidential election.

      - The number of vacuum tubes was reduced fmor about 19,000 to 5,000, therefore reducing the power consumption from 175 kilowatts to 100 kilowatts (!), and also reducing the size and weight. (In comparison, your PC probably has a 200-500Watt power supply -- this thing needed about 200x as much power!)

      - The machines cost about $1Million, so most customers wanted to lease them rather than buy outright.

      --
      everything in moderation
    2. Re:Some more specs/info by fuzzix · · Score: 2, Informative

      Cool!
      The old-computers page has a request for more info on this machine - I'm sure they'll appreciate anything you can contribute.

  10. UNIVAC = Johnny-come-lately by Aardpig · · Score: 4, Informative

    ...this message brought to you courtesy of the memory of LEO.

    Of course, like all British technological innovation, any lead over the rest of the world was quickly thrown away by an incompetent government and business sector.

    --
    Tubal-Cain smokes the white owl.
    1. Re:UNIVAC = Johnny-come-lately by mkavanagh2 · · Score: 2, Informative

      In fact, LEO was 'delivered' in november 1951. The first UNIVAC was delivered in march.

  11. Correct Acronym Explanation? by Anonymous Coward · · Score: 2, Insightful

    An IBM IT dictionary from the late 1980's I once owned translated it as UNIVersal ACcounting machine.

  12. Re:53rd birthday? what's special about it? by strictnein · · Score: 4, Funny

    I think computers only care about special binary birthdays.
    "I'm 110101 years old? So what? I'm looking forward to my 1000000 birthday party! That'll be the day! And don't even get me started about the day I turn 10000000!!!!"

  13. Has anyone tried... by Len+Budney · · Score: 3, Interesting

    Building one of these using transistors? It should reduce maintenance costs, and the leftover power would meet all the energy needs of the museum it lives in, plus the surrounding towns.

    1. Re:Has anyone tried... by orcmid · · Score: 2, Informative

      Well yes, there was a Univac II and the first full-up transistorized (and core memory for RAM) model was called Univac III although it wasn't compatible. There was emulator software to help people convert Univac I/II programs to the Univac III.

      The Univac III was roughly contemporaneous with the Univac 1107. There would be no Univac IV. The 1107 line continued long into the Unisys regime. The Univac III lacked a scalable architecture and died against the System/360 and movement to plug-compatible systems, including those acquired from RCA.

  14. Re:UNIVAC sounds great and all... by daehrednud · · Score: 2, Funny

    Or better yet, is it open source? Cause if it's not we don't want to hear about those worthless closed source systems!

  15. Univac was called "Univac" by callipygian-showsyst · · Score: 3, Funny

    because it had just one Vacuum Tube. That's why Asimov had to develop Multivac.

    1. Re:Univac was called "Univac" by callipygian-showsyst · · Score: 2, Informative
      There's more information about Multicac here.

      Also, here's a reference to Univac and its one vacuum tube.

      If the /. folks get their panties in a knot over an ASIMOV reference, I don't know what this world has come to! Is slashdot now only for praising Apple and bashing Bill? Can't we get back to basics with geeky sci-fi references?

  16. A time when anything was possible by Lord+Grey · · Score: 5, Interesting
    UNIVAC's possibilities fired the imagination. Science fiction writers populated magazines and books with powerful computers, based on what they knew of UNIVAC. Pretty cool stuff, if you don't think it's quaint.

    BTW, one of the best short stories along those lines was Isaac Asimov's The Last Question (published in Nine Tomorrows among other places). The focus isn't really the computer, but it shows how people were thinking about these new-fangled gadgets at the time.

    --
    // Beyond Here Lie Dragons
    1. Re:A time when anything was possible by Trurl's+Machine · · Score: 4, Interesting

      Funny - I asked the Asimov question to the contemporary equivalent of the Asimov omniscient machine and got the same answer as people in this short story. Obviously because it was pointing to web sites about the short story itself, but...

    2. Re:A time when anything was possible by GoofyBoy · · Score: 2, Funny

      How can you go wrong writing sci-fi about "UNIVAC", the ULTIMATE WORLD-CONQUORING COMPUTER!. He is powered by the brains of lesser creatures, foolish mortal!

      Today its an "iMac" or "eMachines". They sound like something I should cuddle up with a nice cup of tea.

      --
      The surprise isn't how often we make bad choices; the surprise is how seldom they defeat us.
  17. Re:UNIVAC sounds great and all... by stinkyfingers · · Score: 5, Funny

    Who cares if it runs Linux ... as long as I can mod the case!

  18. Not the first business computer by dave420 · · Score: 2, Informative
    The LEO, Lyons' Electronic Office, was built earlier in 1951...

    Here is a site with some history. Apparently, they started on it back in '47. Lyons was originally a tea shop in London, before they branched out into computing.

  19. Edmund C. Berkeley by Nakito · · Score: 4, Informative

    This would also be a good time to remember Edmund C. Berkeley. He was an insurance executive (an actuary, I believe) who saw the commercial possibilities of the digital computer at a time when it was generally regarded as only an expensive military tool. He was instrumental in convincing Prudential to buy the Univac I. He then left the insurance industry and became the first advocate of computer education, developing some great logic toys (e.g., the Brainiac, the Geniac) and writing some great books for students (e.g., Giant Brains, Symbolic Logic and Intelligent Machines). He was one of the founding editors of Computers and Animation. Berkeley rocked.

  20. Re:53rd birthday? what's special about it? by narcc · · Score: 4, Funny

    Fun with 53
    53 is prime (fun)
    5+3 is 8 (not prime, but a power of 2. and we all love powers of 2)
    a google search for 53 returns 96,100,000 results and 9+6+1 = 16 (a power of 2!) and 1+6 is 7 (a prime!)
    5-3 is 2 (a power of 2, and a prime ... too wild)

    And you thought 53 wasn't special :)

  21. Seems like a little.... by www.sorehands.com · · Score: 2, Insightful
    [soapbox mode on]

    The computing power is low as compared to today's standards, but people forget that the basic principals that apply to developing software for mainframes of 20,30,40 years ago still should apply to developing software for PCs today.


    Efficient, well designed, clean code should apply to code today as it did 20 years ago.

    [soapbox mode off]

    1. Re:Seems like a little.... by GoofyBoy · · Score: 2, Funny

      >people forget that the basic principals that apply to developing software for mainframes of 20,30,40 years ago still should apply to developing software for PCs today.

      You still have team meetings about the correct way to number your punchcards?

      --
      The surprise isn't how often we make bad choices; the surprise is how seldom they defeat us.
  22. And in other news... by Aardpig · · Score: 2, Funny

    ...Krispy Kreme, manufacturer of premium farinaceous products, have announced the construction of a new supercomputer. The device, which will contain 1729 million AMD Opteron CPUs, linked to 1 terabyte of 2 picosecond RAM via a 1 Exabit/s bus, will be used to model the diffusive transport of coffee throughout glazed doughnuts.

    --
    Tubal-Cain smokes the white owl.
    1. Re:And in other news... by Junior+J.+Junior+III · · Score: 2, Funny

      Wow, that should be enough to run Longhorn!

      --
      You see? You see? Your stupid minds! Stupid! Stupid!
  23. Wow! 53 years old... by ConceptJunkie · · Score: 2, Funny

    Imagine a Beowulf cluster of...

    Never mind.

    --
    You are in a maze of twisty little passages, all alike.
  24. Happy Birthday leopard by TyrelHaveman · · Score: 2, Funny

    Some day is the first birthday of one of my computers, leopard, that was delivered (in peices) to my house in 2003. It weighs under 20 pounds, uses no vacuum tubes, and can perform about 5,200,000,000 calculations per second (avg 2 instructions per clock cycle). It was the first >1 GHz computer in my house, as well as the first with hyperthreading technology. It can retain a maximum of 134,217,728 32-bit numbers and is able to add, subtract, multiply, divide, and thousands of other things. Its transfer rate to and from magnetic floppy disk is about 32,768 characters per second, and its transfer rate from magnetic hard disk buffers is about 35,410,000 characters per second.

  25. I hate to have paid for this story by Omega1045 · · Score: 2, Funny

    I would feel like a real schmuck if I had paid to view this story from the mysterious future.

    --

    Great ideas often receive violent opposition from mediocre minds. - Albert Einstein

  26. security? by darkain · · Score: 2, Funny

    how secure is this system? if i buy one, am i going to have to run "univac update" every day? or does it support automatic updates from a remote tape drive?

  27. First Virus? by Inda · · Score: 2, Interesting

    The page about the game ANIMAL brought back memories. I can't remember the name of the computer I played this on - it was about 20-25 years ago.

    I didn't know the game was a 'virus'. Very interesting.

    http://www.fourmilab.ch/documents/univac/animal.ht ml

    --
    This post contains benzene, nitrosamines, formaldehyde and hydrogen cyanide.
  28. Obligatory Simpsons quote (Professor Frink) by Ismenio · · Score: 3, Funny

    Frink: Well, sure, the Frinkiac-7 looks impressive, don't touch it, but I predict that within 100 years, computers will be twice as powerful, 10,000 times larger, and so expensive that only the five richest kings of Europe will own them.

  29. Re:**ducks** by bhtooefr · · Score: 2, Funny

    125KW per box, we'll make a small 16-box cluster, so that's TWO MEGAWATTS! WOW!

  30. Re:where is it now? - Dino-iron is not extinct yet by xmark · · Score: 5, Informative

    Here's a great freeware UNIVAC simulator you can use until you get your own UNIVAC off eBay. MTBF on those babies was somewhere around 10 hours due to the use of vacuum tubes...hopefully your PC running this sim will post somewhat better reliability numbers. :D If you'd like to see some dino-iron in person, a similar-era ENIAC resides in a basement museum in the Engineering School at the University of Michigan. This page is full of good information and links. Also, check out this list if you're interested in restorations of other ancient machines such as Crays and Cybers; my favorites are the Royal-McBee LGP 21 and 30 machines, immortalized in the Jargon File mythologies about Real Programmers. Read The Story of Mel and be enlightened (as well as entertained) about how a True Master thinks when dealing with the limitations of old hardware. It's so Zen it will make you clap with one hand.

  31. Where's Ken Brown? by zymurgy_cat · · Score: 2, Funny

    I looked at that instruction set. There's no way some researchers could have written that 50+ years ago without help. I hope Mr. Brown gets on this quick and finds out who really wrote the instruction set and how it was stolen. Hell, I'll bet that bastard Linus ripped it off and put it into the first Linux kernel.

    --
    -- Fugacity: Confusing chemists since 1908
  32. I'll tell you what's been added! by JudgeFurious · · Score: 4, Funny

    Just last month they had the crew from "This Old House" over to do a case mod for it.

    --
    Appended to the end of comments you post. 120 chars.
  33. amazed by the specs by xonen · · Score: 2, Interesting

    Wow, i am amazed by the specifications. This 'beast' almost outperfoms my ZX-81! zx-81: 1Kb memory, tape I/O: 300bps.. only thing that is (little) faster may be effective clockspeed: 1Mhz, but i doubt if the zx-81 can take 1000 square roots in one second ;) Looks like it took microelectronics about 30 years to make a -payable- equivalent of this machine.

    --
    A glitch a day keeps the bugs away.
  34. Re:What no "Imagine a Beowolf cluster" jokes yet? by JudgeFurious · · Score: 4, Funny

    Nope, it's not the AC's day off. It's just that the UNIVAC I is the only computer that nobody can (even trying their hardest) actually imagine "a Beowulf cluster" of.

    Where would you put it? "Oh and over here, next to Texas is New Mexico which, you might find interesting to note is not actually an inhabited state. It's where we keep our UNIVAC Beowulf Cluster. Sweet huh? You can see it from space!"

    --
    Appended to the end of comments you post. 120 chars.
  35. Blast from the Past by Greyfox · · Score: 3, Insightful

    I ran across some of my granddad's "Lensmen" books a while back. The funny thing about those books was that our heros were capable of faster than light travel, but they had to do all their interstellar navigation using slide rules! It's always fun to see how our current understanding of the world affects our vision of the future.

    --

    I'm trying to teach myself to set people on fire with my mind... Is it hot in here?

  36. Decendant of Univac I still in production by Danathar · · Score: 4, Informative

    Many people do not know that OS2200 which operates on the UNISYS Clearpath systems is a direct decendant of the original Univac OS.

    I was an operator on a 2200 class system in the early 90's.

    As mainframes go, it was pretty cool!

  37. Re:obligatory (-5, redundant) by wandazulu · · Score: 2, Informative

    They already did it.

    Though it was IBM, not Univac equipment.

  38. No LEDs in 1951! by mangu · · Score: 4, Informative

    Those little lamps weren't LEDs, probably they were neon lamps. In hardware with a lot of vacuum tubes, burned filaments were the most common problem. To help find the burned tubes, they put the filaments in series of ten or so tubes, with a neon lamp in parallel with each tube. The operating filament voltage wasn't enough to turn on the neon lamp, but when a filament burned, the full voltage for all the series appeared across the terminals of the burned tube and the neon lighted up.

  39. The Guinness Book of Records by Open+Council · · Score: 2, Interesting

    awarded this certificate to end the arguements.

    --
    Paul
    www.opencouncil.org
    Open
  40. Guinness Bias? by BeaverCleaver · · Score: 3, Informative

    IIRC, the origin of the Guinness book of records was to settle the debates that one gets into after a few pints at the pub, eg. "I tells ya, a greyhound can outrun a racehorse!" etc. That's why the book was originally published by the brewer GUINNESS and filled with "faster, bigger" type facts. These days they have all kinds of scrutineering to verify any world records published, but I still don't think it's quite ready to rank up there as a reputable scientific journal yet.

    Also because of the geographic origins of the publication (Guinness = Ireland I assume;-) there might be some UK-centric bias. I'm not accusing Guinness of any underhanded practices here, merely that they are likely to receive many more submissions for inclusion from their side of the Atlantic, and that these submissions would be simpler to verify.

    I for one am just saddenned that they have discontinued so many of the "gluttony" records in recent editions, for fear they would be sued if some idiot ate 50kg of canned prunes and crapped himself inside out.

    I haven't looked at a Guinness Book of Records recently, so some of this may no longer be current.

  41. Re:The Brits invented the computer by DarkKnightRadick · · Score: 2, Informative

    Punch card machines are recognized as being the first mechanical computer and they were invented by IBM in the USA

    --
    "There is a way that seems right to a man, but its end is the way of death." Proverbs 16:25 (NKJV)