[inforoots] Origin of the IBM 1130 Name

Van Snyder van.snyder at jpl.nasa.gov
Mon Oct 30 12:18:18 PST 2006


On Mon, 2006-10-30 at 07:34 -0800, Bill Worthington wrote:

> I'm not sure what the logic was in selecting machine numbers back in
> the 1960s.  There did see to be some order to it however.  I believe
> that they were all assigned by the product marketing folks in White
> Plains.  Development had their own names for unannounced machines like
> NS, FS, Shark, etc.  (This was good because some of them never saw the
> light of day.)

I understand 1620 was called CADET, not because it was a beginner
machine, but because it meant "Can't Add, Doesn't Even Try" (the
arithmetic was done with lookup tables, with a little bit of hardware
help for multiply/divide).  We had telemetry-processing applications on
1620's that changed the adder table to think in octal.

I understand the 1400 series number came from the original 1400-
character memory size.

Of course, I could be wrong on both scores.

-- 
Van Snyder                    |  What fraction of Americans believe 
Van.Snyder at jpl.nasa.gov       |  Wrestling is real and NASA is fake?
Any alleged opinions are my own and have not been approved or
disapproved by JPL, CalTech, NASA, the President, or anybody else.



More information about the inforoots mailing list