Author Topic: HP-35: Happy 45th anniversary!  (Read 1359 times)

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Offline sasa

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HP-35: Happy 45th anniversary!
« on: September 01, 2017, 05:02:12 pm »
This year is the 45th anniversary one of the milestone in computer history and dream of any engineer :  the HP-35, i.e. "the slide rule killer", the first world's  pocket scientific calculator.

"Every aspect of the calculator was a challenge...", said Dave Cochran in an interview from 2007...



Jacques Laporte had made excellent effort of describing everything about in details:

http://www.jacques-laporte.org
http://home.citycable.ch/pierrefleur/Jacques-Laporte/

For a retro nostalgic (as I'm), it was a gold mine... Sadly, some key schematics of the hardware was gone after he died in 2015...
The 30+ years professional desktop software designer and software engineer
 

Offline Selectech

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Re: HP-35: Happy 45th anniversary!
« Reply #1 on: September 02, 2017, 12:35:38 am »
I still have mine & it still works. Bought new in Sept 1973.
 

Offline sasa

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Re: HP-35: Happy 45th anniversary!
« Reply #2 on: September 03, 2017, 07:51:50 am »
Except NiCd battery pack replacement and some peel off paint, this calculator is made to last.

Everything about HP-35 is pretty much revolutionary for that time. Many patents are pended regarding it.
« Last Edit: September 03, 2017, 07:54:07 am by sasa »
The 30+ years professional desktop software designer and software engineer
 


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