Jason McBrien wrote:
  On Wed, Feb 13, 2008 at 7:26 PM, Fred Cisin <cisin
at xenosoft.com> wrote:
  On Wed, 13 Feb 2008, Charles H Dickman wrote:
  So what is the oldest computer still operational?
        
 Meaningless question, until you DEFINE:
 "Oldest"
      
 The earliest created. It's birthday is the moment it first calculated
 something, or the day it went on sale.
    
This is a tough group... :-)
We can argue about that when we have some examples.
 
"computer"
      
 A machine that can (theoretically) automatically solve any arbitrary
 problem, with input, storage, and output. I think the term is pretty well
 defined. Not a tabulator, or calculator, or punch-card time tracking
 machine, or programmable loom.
    
 Digital, electronic, stored program, Turing-complete. I could even be
convinced to say just digital and electronic. If there is a Zuse machine
or something out there, I am curious about it.
 
"operational"
      
 Still performs to original specs. Lights light up, results are accurate,
 etc...
    
 Operational seems pretty clear to me, but a front panel wired to a light
blinker does not count. Lets put the bar at the level of the PDP-1 at
the CHM.
-chuck