Interested in UNIVAC 9000 Series (and IBM 360)

[Fred Cisin]

>> http://bitsavers.informatik.uni-stuttgart.de/pdf/ibm/360/
>> fe/2020/Z33-1021-0_2020_Processing_Unit_FETOM_May68.pdf
>> (pdf) pages 45, 46 describe the ALU

On Mon, 21 Nov 2016, Charles Anthony wrote:
> I note that the cover page says: "(Machines with serial no. 50,000 and
> above)."
> Perhaps the ALU is only present on late model machines?

A nice ROUND number for the model change.
Had they sold 49,999 machines before that model change?
Or was this a machine where the first one sold already had a 5 digit 
serial number?