From: "Pat Rogers" <progers@NOclasswideSPAM.com>
Subject: Re: Customer balks at Ada -- any hope?
Date: 2000/07/26
Date: 2000-07-26T00:00:00+00:00 [thread overview]
Message-ID: <dAIf5.183$wE4.32187@nnrp3.sbc.net> (raw)
In-Reply-To: 397F442E.E132EFDF@silver.jhuapl.edu
"Scott Ingram" <scott@silver.jhuapl.edu> wrote in message
news:397F442E.E132EFDF@silver.jhuapl.edu...
> Dale Pontius wrote:
> >
> > In article <3974F7A1.E806B092@silver.jhuapl.edu>,
> > Scott Ingram` <scott@silver.jhuapl.edu> writes:
> > > wv12@my-deja.com put out some flame bait to which I responded:
> > >
> > >> C has been known to control big, expensive hardware. One such
> > >
> > > C has controlled big, expensive hardware...and people died.
> > >
> > Point of curiousity - can you expand on this? Tales of death
> > due to software error are surprisingly uncommon, given what we
> > seem to consider the poor general state of software development.
> >
> > Dale Pontius
> > NOT speaking for IBM
>
> The device I was thinking of was a medical radiation generator for
> the treatment of cancer. However, a reference that Ken Garlington
> gave earlier on c.l.a. led me (eventually) to a report on the
> Therac-25 which I believe is the machine that made it into urban
> legend as the killing machine. I have not completed reading the
> report yet, but I also have not discovered any incidents of
morbidity
> directly attributable to the massive radiation overdoses that some
> patients were exposed to. A Google search on "therac 25" pops up
> about 1050 links.
Nancy Leveson's book Safeware indicates deaths were actually a result,
but not in all cases. (She also states that the software was
developed in assembly language.)
--
Pat Rogers Consulting and Training in:
http://www.classwide.com Deadline Schedulability Analysis
progers@classwide.com Software Fault Tolerance
(281)648-3165 Real-Time/OO Languages
Adam ... does not deserve all the credit; much is due to Eve, the
first woman, and Satan, the first consultant.
Mark Twain
next prev parent reply other threads:[~2000-07-26 0:00 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-07-17 0:00 Customer balks at Ada -- any hope? mjsilva
2000-07-17 0:00 ` Ken Garlington
2000-07-18 0:00 ` Samuel T. Harris
2000-07-18 0:00 ` Ken Garlington
2000-07-18 0:00 ` Scott Ingram`
2000-07-18 0:00 ` Scott Ingram`
2000-07-18 0:00 ` Larry Kilgallen
2000-07-18 0:00 ` Scott Ingram`
2000-07-18 0:00 ` Larry Kilgallen
2000-07-19 0:00 ` David Starner
2000-07-19 0:00 ` Ken Garlington
2000-07-19 0:00 ` Scott Ingram`
2000-07-19 0:00 ` Ken Garlington
2000-07-20 0:00 ` Samuel T. Harris
2000-07-21 0:00 ` Ken Garlington
2000-07-17 0:00 ` mjsilva
2000-07-18 0:00 ` Ted Dennison
2000-07-18 0:00 ` mjsilva
2000-07-18 0:00 ` Tucker Taft
2000-07-18 0:00 ` mjsilva
2000-07-18 0:00 ` Scott Ingram`
2000-07-18 0:00 ` Scott Ingram`
2000-07-18 0:00 ` nabbasi
2000-07-19 0:00 ` Pascal Obry
2000-07-19 0:00 ` Florian Weimer
2000-07-28 0:00 ` Robert I. Eachus
2000-07-28 0:00 ` Philip Anderson
2000-07-28 0:00 ` Ken Garlington
2000-07-31 0:00 ` Harry Erwin
2000-07-31 0:00 ` Ted Dennison
2000-07-19 0:00 ` Rennie Allen
2000-07-19 0:00 ` nabbasi
2000-07-18 0:00 ` Stanley R. Allen
2000-07-18 0:00 ` Rennie Allen
2000-07-18 0:00 ` Stanley R. Allen
2000-07-20 0:00 ` Joseph C Williams
2000-07-21 0:00 ` Ted Dennison
2000-07-18 0:00 ` Larry Kilgallen
2000-07-18 0:00 ` Scott Ingram`
2000-07-18 0:00 ` Larry Kilgallen
2000-07-18 0:00 ` wv12
2000-07-18 0:00 ` Larry Kilgallen
2000-07-19 0:00 ` Kieran Mckey
2000-07-19 0:00 ` fdebruin
2000-07-19 0:00 ` Ken Garlington
2000-07-19 0:00 ` Kieran Mckey
2000-07-19 0:00 ` Customer balks at Ada -- any hope?--Warning Significant Thread Drift Ahead Jeff Creem
2000-07-20 0:00 ` Kieran Mckey
2000-07-28 0:00 ` Robert I. Eachus
2000-07-18 0:00 ` Customer balks at Ada -- any hope? Scott Ingram`
2000-07-26 0:00 ` Dale Pontius
2000-07-26 0:00 ` Scott Ingram
2000-07-26 0:00 ` Pat Rogers [this message]
2000-07-26 0:00 ` Florian Weimer
2000-07-27 0:00 ` Ken Garlington
2000-07-19 0:00 ` mjsilva
2000-07-19 0:00 ` Ken Garlington
2000-07-24 0:00 ` Richard Riehle
2000-07-25 0:00 ` mjsilva
2000-07-25 0:00 ` Gary Scott
2000-07-25 0:00 ` gdemont
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