Mike Katz wrote:
I'm sorry but you are misinformed about the HP-41C
Calculator.
The HP-41 was the first calculator that had
Alpha-Numerics.
That is not true.
Technically, out of the box, it was the HP 9830. Yes, it wasn't a handheld
calculator, and it didn't run on batteries(it was big and quite heavy and required
standard 115V AC power), but it had an alpha-numeric display(and optionally a printer)
that could be programmatically written to, and the machine could accept alpha-numeric
input and process it as such.
The HP 9820 had an alphanumeric display, and could be programmed to generate alphanumeric
prompts on the display, but I don't believe (off the top of my head, I could be wrong)
it had the capability to accept and process alpha-numerics out of the box.
The HP 9820 and 9830 were introduced in June of 1972. Seven years before the HP-41.
-Rick
--
Rick Bensene
The Old Calculator Museum
https://oldcalculatormuseum.com
Beavercreek, OR USA