Oldest machine

[Patrick Jankowiak]

I have an operation Heathkit EC-1 analog computer. Vacuum tubes and relays 
of course.

Patrick

Jules Richardson wrote:

> Tony Duell wrote:
> 
>>> One thing I love about my old IBM PC 5150 with ST-225 is that *it is 
>>> still running 22 years later*.  I fire it up at least once a week to 
>>> do some hobby 
>>
>>
>> Newcommer :-). My 32-year-old HP9830 still fires up.
> 
> 
> That made we wonder... what's the oldest *operational* digital machine 
> owned by anyone on this list?  Although I suppose it's hard to define 
> 'machine' - something with RAM, I/O in some form, and at least one CPU  
> (what the heck do you call a CPU when it's no longer central?)
> 
> I remember the discussions a while back about age of list members, but I 
> don't recall ever seeing a similar one about age of collections!
> 
> Not having all the peripherals that would have perhaps originally gone 
> with the machine is acceptable I think (I can see some people having 
> room for a mainframe and control desk, but probably not for a bazillion 
> tape / drum units to go with it!). But other than that, make it complete 
> (i.e. things like the single rack of EDSAC that we have - whilst perhaps 
> "operational" - doesn't count :)
> 
> 
> (I'd quite like to hear responses from people with analogue machines 
> too, but someone else will be able to define qualifying rules much 
> better than I can)
> 
> Just out of curiosity!
> 
> cheers
> 
> Jules
> 
>