Jules Richardson wrote:
  Brent Hilpert wrote:
  The idea of building such large systems was
 considered daunting or simply implausible even in the 1940's 
 I think the
issues there revolved largely around a belief that the end result
 simply wouldn't work to the required spec, rather than it not being possible
 to do at all. 
 With a (large) digital system what's the difference? It was a concern which did
 have to be addressed (with techniques like margin checking, amongst others) to
 get useful production/uptime out of the machines. Refer to Will's earlier
 mention of probability and statistics. 
My thinking was that the astronomical cost needed to get a device of unknown
speed and reliability (which might not prove more efficient than the human
workers it would replace) into production put a damper on most plans - people
could likely see that a computer (in the electronic / electro-mechnical sense)
would work, but not necessarily be able to judge how well...
cheers
Jules