How to determine the ROM-Version of am 71B ?



thats my question: How to determine the ROM-Version of am 71B ?

best regards






First your posts are highly informative. What do you do for a living? Do you work for HP?

Secondly, on the subject of ROM version, can you tell me what ROM versions there were and are there any meaningful differences between them?


John Kercheval
Georgetown University
Washington, DC


Hi John,

The follow is great page with the ROM versions and their associated bugs:



Possibly Related Threads...
Thread Author Replies Views Last Post
  C71 Rom for HP 71b ? Michael Fehlhammer 1 885 05-07-2013, 10:24 PM
Last Post: Allen
  HP85 Programmable ROM cardtridge 82929A-service ROM not working- inaki 2 1,483 04-25-2013, 08:08 AM
Last Post: inaki
  HP-71B - thanks to Marcus von Cube for MATH ROM article Michael Lopez 2 1,134 03-03-2013, 07:19 AM
Last Post: Paul Berger (Canada)
  shelf life time of a ROM, EEPROM, EPROM vs Mask Rom Guido (Canada) 6 2,326 01-11-2013, 04:09 PM
Last Post: Thomas Falk
  Big ROM - 41 System DEMO ROM Ángel Martin 5 1,967 10-16-2012, 05:28 AM
Last Post: Ángel Martin
  Some errors about NOMAS, (c) of 71B ROM images Christoph Giesselink 4 1,418 06-13-2012, 04:10 AM
Last Post: Valentin Albillo
  HP-71B Rom Stuck in Port Jeff Davis 2 898 11-26-2011, 10:24 PM
Last Post: Patrice
  Is there an easy way to determine how many factors a number has? Don Shepherd 7 1,696 07-04-2011, 09:17 AM
Last Post: Gilles Carpentier
  HP-IL 71B to 71B via HPIL Geoff Quickfall 11 2,340 12-01-2010, 06:55 PM
Last Post: Michael Meyer
  HP-41 FOCAL to .ROM for Clonix/NoV's (or any other ROM-box) Diego Diaz 6 2,110 06-08-2010, 01:44 PM
Last Post: Meindert Kuipers

Forum Jump: