27 Jan
2011
27 Jan
'11
8:42 a.m.
On 27 Jan 2011 at 3:27, Eric Smith wrote:
Chuck Guzis wrote:
Okay, let's drop down one step.
Is a PLC a computer? (basically not much more than a latch and an
EPROM)? It's programmable, and it can, after a fashion, be made to
calculate, given the right feedback terms. Basically a state
machine.
--Chuck
Would you consider the MC14500 to be a
"computer"? Motorola didn't
term it as such (they called it an "Industrial Control Unit"), but
I
> submit that it can be made to calculate, is programmable, and so
is a > computer.
In fact, the MC14500B architecture is very similar to that of the
PDP-14. I suspect that is not a coincidence, as they were intended
for essentially the same market.