|Re: HP-71B ROM versions|
Message #2 Posted by Reinhard Hawel on 31 Mar 2001, 11:54 a.m.,
in response to message #1 by CJ
As a HP-71 "expert" I feel, it's my duty to answer that.
2CDCC was the last version. I also believe, they ended the production of the 71B in 1988, but the machine was much longer on the Austrian pricelist, that in a lot of other countries. The reason seems to be, that a large insurance company in Austria ("Sparkasse Versicherung") had ordered and bought about 1000, or even more machines from HP over a long-time contract. This contract had to be fulfilled and that was the reason, that the 71B was kept as a "machine in production". Sparkasse was HPs 2nd largest contractor workdwide buying the 71Bs
There seemed to be a similar case in the U.S., where the U.S. army (and possibly other contractors) had such agreements. The U.S. army used the 71Bs for control of their M-110 cannons. (The U.S. army was the largest contractor).
AFAIK 2CCCC had a major bug in redimensioning arrays while running a program (I don't own such a machine, so I don't can check this) and HP had to correct this.
1BBBB was the first public revision and it remained stable for a long long time (I own the IDS for this version). There was also an IDS for the 2CDCC version, but I don't know anybody, who owns it.
I have a pre-production version of the HP-71B in my posession (Serial 0000A00022)
The Ver$ string returns: "TI%RM4-HP71:0AAAA"