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April 20, 2009

How many engineers does it take to change a lightbulb?

srikanth @ 8:10 pm, GMT +0000 ( 1240258218 ) Play

Identify object on keychain (left). Also identify reason for said object’s infamy. Quote on right should be clue.

fa3aa5dfad9fa29957c6386bab89e0aa

Cracked by almost everyone!

Answer:

Intel’s ’94 Pentium processor, which had the famous FDIV bug that caused all kinds of weird division errors. Intel released a keychani containing this processor on the front, and a quote by Andy Grove on the back. The quote was Grove’s response to the fiasco, which eventually became one of Intel’s mantras.

So yeah, it takes 1.92834674 engineers.


29 Responses to “How many engineers does it take to change a lightbulb?”

  1. foobar

    Pentium chip in 1994. It had the (in)famous FDIV bug, certain floating point divisions were producing incorrect results because of some missing entries in the lookup table. The quote is by Andy Grove, co-founder and chairman of Intel.


  2. shrik
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    The die of one of the original defective P60 Pentium chips with the infamous floating-point division bug.

    Quote on right by Andy Grove in December 1994, after finally giving in and instituting a replacement program for the borked chips.


  3. Andy Grove, Pentium Processor. The FDIV flaw on the Pentium line of processors, discovered December 1994.

    Phew, long time no boiledbeans.


  4. madhur
    1

    Intel’s flawed Pentium processor chips (Floating point division bug) were given to its employees as keychains


  5. Aparna
    1

    Nehalem, intel\’s new chip.


  6. Goyal
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    Andy Grove – For flaws in the Intel Pentium processor


  7. Goyal
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    And that is the processor


  8. Rahulk
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    The infamous FDIV bug infected Intel chips

    http://dic.academic.ru/dic.nsf/enwiki/15094


  9. Rahul
    1

    Intel Pentium Processor. Andy Grove’s quote after the FDIV bug:
    http://en.wikipedia.org/wiki/Pentium_FDIV_bug


  10. Kaiser Soze

    Intel Pentium keychain. A math error found in all Pentium chips and the consequent embarrassment due to this episode led CEO Andrew Grove to coin the above quote which was then put on all keychains for its employees.


  11. Intel key chain with Andy Grove quote regarding the FDIV bug..


  12. Andrew Grove of Intel coined the phrase. Context:Intel’s microprocessor, Nehalem


  13. Andy grove, and I guess it is the Intel 1 chip which was bought back from the markets for it had a bug(FDIV)


  14. scamlal

    The Andy Grove Quote on the Intel Keychain. Referring to the Pentium Processor inconsistencies discovered in late 1994 which eventually led to the processors being replaced.


  15. Dibyo
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    In December 1994, Intel faced a crisis where a floating point error caused erroneous calculation. Intel recalled nearly a million chips that cost the company a US$ 500 million charge. After the crisis was resolved each employee was given a key chain, with a flawed chip engraved, and a quote from Andy Grove.


  16. KRIK

    Pentium FDIV bug
    1. INTEL INSIDE ,PENTIUM
    2.QUOTATION BY ANDY GROVE ,1994,DECEMBER


  17. x3n

    the pentium chip.

    Infamous because of the pentium FDIV bug which resulted in a recall of pentium processors by intel.

    The quote is by Andy Grove and has become intel’s mantra since then.


  18. Ps

    Andy did Groove the Intel Inside ever so much that he wanted it on a keychain.

    Some would say it was a flaw, others just decided to wait for AMD, given their abhorance for the Pentium FDIV bug!


  19. duriel
    1
    1
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    “Intel Inside. Pentium”

    Andy Groove quote

    Infamy: Pentium FDIV Bug


  20. Raghuvansh
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    The object is a Pentium processor, infamy, I don’t know what exactly you want – the floating point error thing? Setting up Intel’s processor monopoly?


  21. AmK
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    Intel\’s Pentium Processor. The Intel brand took some well-publicized hits due the flaws (high precision division error) in its Pentium chips in 1994. CEO Andy Grove then coined the phrase printed on the back of this keychain.


  22. p vs np
    1

    More than a decade ago, in December 1994, Intel faced a crisis where a floating point error caused erroneous calculation.

    Intel recalled nearly a million chips that cost the company a US$ 500 million charge.

    After the crisis was resolved each employee was given a key chain, , with a flawed chip engraved, and the above mentioned quote from Andy Grove.


  23. alephnull

    The Pentium FDIV bug immortalised by the Andy Grove quote.


  24. Mitesh

    nice question – this is the 1994 Intel Pentium flaw…andy grove defined Intel’s way of working after this incident…well described in Only the Paranoid Survive


  25. Ananth
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    Intel had to issue a recall in 1994 due to a floating point bug in Silicon. Andy Grove made the famous statement after that. The chip on the keychain is the recalled one.


  26. Nakul

    Intel Pentium processors in 1994 took a lot thuppings for math errors in their chips after they adopted the slogan on the right and spend nearly 420$million a year for quality asuurance :O


  27. Siddharth Jain
    1

    Intel’s “flawed” Pentium processor chip – each Intel employee was given one on a keychain after the recall.


  28. varuns88
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    In 1994,a batch of Pentium processors were found to have a floating point error which caused erroneous calculations.Intel recalled these and after the crisis was resolved, engraved them into keychains with an Andy Grove quote and handed em out to its employees.


  29. Prasad

    A Pentium proc chip, which had the division error in ’94?


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