On 3/6/2012 11:08 PM, dwight elvey wrote:
From: lproven at
gmail.com
The "Program 101":
http://english.pravda.ru/history/07-03-2012/120702-Program_101_first_person…
Thoughts? I've never even heard of this product before.
Hi
It was a programable calculator.
One could almost say it was a computer because
it did have a conditional branch. Programs could
be saved on magnetic cards. It used delay lines
for registers and memory.
I wouldn't call it a computer.
I'd still like to have had one.
Dwight
Dwight,
the feature that separated it from just a programmable calculator was
that it could compute and store program steps on the fly.
I wrote programs specifically to do that. One entered the programs as a
series of steps, and you lost storage registers as you added program steps.
However you could calculate the location of a program step and carefully
modify it. It isn't much, but I think that tips it over into a really
small computer with stored program.
The cards were for backup, and reusable which was quite a feature in the
days of punched cards.
the Wangs that came later had only the card reader, and you typing to
program it. Anyone recall whether it could generate program steps on
the fly or not? I don't recall ever seeing anyone do it.
I don't defend it as useful on a machine with effectively 64 locations
total (48 years dulls the memory) and only used it to prove the capability.
Jim