I've had exactly the opposite experience. 10 years of solid on time.
Never turned the machine off. :-)

Dave

On Mon, 2013-06-24 at 14:13 -0400, Gene Heskett wrote:
> On Monday 24 June 2013 13:59:47 Stuart Stevenson did opine:
> 
> > wonders never cease
> > I  just saw a link for a PDP-11 assembly programmer for a job to last
> > until 2050
> > seems as if anything is possible
> 
> Even including that insanity, because based on my experience with a 
> PDP-11/723, that would have to be considered insanity.  That thing was a 
> crashomatic, several times an hour at the end, and since it took something 
> like 15 minutes to boot because compiling the program it ran was part of 
> the boot sequence, the uptime was less than 50% of the time.  DEC replaced 
> everything in that machine but the frame rail with the serial number 
> riveted to it and every time they touched it, they made it worse.
> 
> My problems with that single example caused the CBS tv network to replace 
> every machine at every CBS affiliate with industrial IBM's & new software, 
> on their nickel.  That thing probably cost us $100k or more in lost 
> commercial revenue because it had silently crashed, and a channel change 
> wasn't done on time, so we were airing a dog food commercial we didn't get 
> paid for in place of the toothpaste commercial we would have been paid for 
> had the channel or bird switch been done on time.
> 
> No, I do not remember the PDP-11 days fondly. :(
> 
> Cheers, Gene



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