Interesting serial number - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: General Forum (/forum-4.html) +--- Thread: Interesting serial number (/thread-6997.html) |
Interesting serial number - AndiGer - 10-08-2016 05:33 PM Today I used my HP 82104A card reader. When I took a look at the serial number I realized it should not be valid: 2057S... 57th week of 1980? What went wrong in those days? Did they forget to switch the year to 1981 and recount the weeks from 01? Responsable manager still in X-Mas holidays? Anybody recognized such a strange thing in the past? Are there also calcs outside with an invalid week? Andi RE: Interesting serial number - PANAMATIK - 10-09-2016 05:45 PM For your model they used a lunar calendar or 1980 must have been a strange leap year My HP-82240B printer 3653I50312 is manufactured 1996 in Indonesia. But they don't have an extra christmas week there, 1996 January 1st was a Monday and it was a leap year, thus the printer must have been manufactured at 1996/12/30 or 1996/12/31 based on the gregorian solar calendar. Bernhard RE: Interesting serial number - AndiGer - 03-12-2017 02:33 PM These days we have another one on TAS, 2058S... http://www.ebay.com/itm/162424731179 Andi |