The Museum of HP Calculators

HP Forum Archive 21

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The Family Tree
Message #1 Posted by Matt Agajanian on 31 Mar 2012, 5:11 p.m.

Hello all,

Is there a diagram that shows the lineage of HP calculators. I'm particularly interested in seeing which calcs were the descendants of which. For example, in the 1978 Buying Guide, the HP-31E was advertised as the descendant of the HP-21 (which was the successor to the HP-35).

Thanks

Edited: 31 Mar 2012, 5:13 p.m.

      
Re: The Family Tree
Message #2 Posted by Harald on 31 Mar 2012, 5:31 p.m.,
in response to message #1 by Matt Agajanian

Uhm, yes, that is sort of available on this site. Just go through the museum pages. At the bottom of each calculator page you find a link to the next and previous one made. Also in the discription you will find which model it replaces or how it relates to others.

      
Re: The Family Tree
Message #3 Posted by Gerson W. Barbosa on 31 Mar 2012, 5:43 p.m.,
in response to message #1 by Matt Agajanian

José Gonçalves has prepared one:

http://www.hpmuseum.org/guest/goncalv/hptree.pdf

Enjoy!

            
Re: The Family Tree
Message #4 Posted by aurelio on 31 Mar 2012, 5:55 p.m.,
in response to message #3 by Gerson W. Barbosa

thank-you for sharing the tree, Gerson

Edited: 31 Mar 2012, 5:56 p.m.

                  
Re: The Family Tree
Message #5 Posted by Gerson W. Barbosa on 31 Mar 2012, 6:08 p.m.,
in response to message #4 by aurelio

Figurati!

I should have mentioned the author had announced it in this old posting.

Gerson.

            
Re: The Family Tree
Message #6 Posted by Matt Agajanian on 31 Mar 2012, 8:52 p.m.,
in response to message #3 by Gerson W. Barbosa

Now, THAT'S a tree! You're right! I'm enjoying this!! Funny thing--as I'm looking for the codenames, I didn't realise that those are in the 'Collector's Corner' section here.

Edited: 31 Mar 2012, 9:55 p.m.

      
Re: The Family Tree
Message #7 Posted by bill platt on 31 Mar 2012, 6:56 p.m.,
in response to message #1 by Matt Agajanian

Remember that we might like thinking of it this way, but in fact each product is simply a product placed in the marketplace. IT may have been observed to follow a pattern (e.g. 11c 32s 32sii 33s 35s) and we might have some anecdotes, but really, there is no actual family tree :-)

            
Re: The Family Tree
Message #8 Posted by Luiz C. Vieira (Brazil) on 31 Mar 2012, 8:00 p.m.,
in response to message #7 by bill platt

Hi.

Yep, you are correct. The family tree itself shows a reverse natural pattern (wow! RNP...): the tree comes after its fruits.

Cheers.

Luiz (Brazil)

Edited: 31 Mar 2012, 8:01 p.m.

                  
Re: The Family Tree
Message #9 Posted by aurelio on 1 Apr 2012, 3:33 a.m.,
in response to message #8 by Luiz C. Vieira (Brazil)

In Italy we say : "è nato prima l'uovo o la gallina?", it means : was born, first, the egg or the hen?

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