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The HP-35: Consumer Electronics, an Origin Story

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Re: The HP-35: Consumer Electronics, an Origin Story

#51
post #48
post #38

While I am definitely fond of the HP-35 in a nostalgic sense, my real-life working calculator was the HP-48GX when I became a land surveyor. I added a COGO card that would calculate pavement design, storm water pipe modelling, and the area of a polygon after the coordinates of each point were given. And away I went. There wasn't much I couldn't do with that, graphing or calc-wise. Made my job so much easier in the fi…

The HP-48G/GX was also my calculator of choice and I really disliked the later HP49. However, I then tried the HP50G, and was instantly hooked. Once you get over the differences in key layout, it's like a HP-48GX loaded with tons of useful software, in a slightly better form factor. I now have a HP50G and a HP-48G, but I never use the older model. On iOS, I use the Emu50G app, which works, but could really use some i…

Have you tried Calc? It's loosely modelled after the HP-calculators and it's my first choice of calculator when I have a full blown computer at my hands.

https://www.gnu.org/software/emacs/manual/html_mono/calc.htm...

Re: The HP-35: Consumer Electronics, an Origin Story

#52
Amazing. I got a HP30s in 2003 as it was the only calculator approved by the university. Everybody I knew hated every single aspect of it. The arrow button was soft and imprecise, leading to long calculations being deleted by accident. The display was too short for longer expressions (compared to the competition). The display scratched easily. The buttons were round and didn’t give good tactical feedback. My jaw dropped when I started working in industry and people would guard jealously their ancient HP calculators with nice clicky buttons and crisp display.

HP has come a long way - down.

Re: The HP-35: Consumer Electronics, an Origin Story

#53
post #32

> HP’s own LEDs [...] the calculator needed 15 of them > Osborne was able to get the price down to a dollar each > HP typically priced their equipment at the cost of the material list × π [...] the LED display around 20 dollars uh?

They mean 15 7-segment LED Display modules (bubble LED displays).

Re: The HP-35: Consumer Electronics, an Origin Story

#54
wow... what an amazing article. Few interesting bits...

- HP was offering so many products that it took a four-pound, nearly 600-page catalog to describe them all.

- In what has to be one of the most famous design briefs in electronics history, Bill Hewlett asked Osborne and Cochran to shrink the 9100. “I want it to be a tenth of the volume, ten times as fast and cost a tenth as much.”

- At the time it seemed like an impossible request, but Hewlett didn’t let the idea go. Cochran, who for a time lived across the street from Hewlett, would occasionally give him a ride to work.

- It soon became clear that the entire project was going to cost around a million dollars.

- Stanford Research Institute did market survey and their conclusion was clear: “we don’t recommend that you go ahead with this.”

- Hewlett, despite the SRI report, decided he wanted one and thought his engineers should have one as well.

- For the log and exponential functions they used pseudo division and multiplication algorithms from Briggs’ 1624 Arithmetica Logarithmica. For the transcendental functions they used Volder’s CORDIC algorithm, originally developed for B-58 navigation.

- It took them more than a little finessing to fit everything into the 5140 bits (or 0.6 K).

- First industrial design featuring angled the display, a textured case, rubber feet serve as battery compartment latches.

- The entire project took 14 months, half of HP’s typical design cycle.

- Hewlett said the name would be the HP-35, after the device’s 35 keys. HP’s computerized inventory system only recognized four-digit names

- HP typically priced their equipment at the cost of the material list × π (or in an especially competitive market, list × e)

- “We [had to worry about] sales per square foot on the first floor of Macy’s, vs. the second floor.”

- HP-35 “[was] something only fictional heroes like James Bond, Walter Mitty or Dick Tracy are supposed to own,” a device that Captain Kirk of Star Trek was supposed to own.

- climbers carried to the top of Everest to do altitude calculations; Apollo astronauts used it in space to calculate re-entry coordinates

- In all, 100,000 HP-35’s (or more than 10× their estimate) were sold in the first year—accounting for more than half of the company’s total profits

It's amazing the similarity between HP and Apple's success stories. And then the fact that Steve Jobs bought the property that summer and the site is now part of Apple’s new Pentagon-sized spaceship headquarters.

I think pretty much every thing you need to know why companies succeed and fail is in this story.

Re: The HP-35: Consumer Electronics, an Origin Story

#55
post #45
post #22

Earlier quoted context omitted.

Ha ha, practically? She did. Keysight is what’s left of the original HP. HP is now known for garbage computers and shitty printers.

I feel that they're getting their legs back under their consumer division, although I agree their laptops have been really mediocre. However I have enjoyed using their enterprise workstations for the last 10 years are so (various models of Z4xx's) and haven't had any complaints.

The Bestec PSUs were often the weakest link - and a non-standard size (and wiring ISTR) so you couldn't replace them with just anything.

Re: The HP-35: Consumer Electronics, an Origin Story

#56
Some of these comments are "my first HP".

I bought an HP-28C in when I graduated from high school using my own money. It was $235 which was a lot of money for me. My parents thought I was crazy. I later upgraded to the 28S followed by the 48sx.

At college, I would enter and win the "Calculator Olympics". They would give you these super complicated algebraic expressions to evaluate. The TI people would lose track of all the parentheses and the older HPs would exceed the 4-level stack.

I was amused a couple years ago to discover many of my old programs are still preserved on the internet: https://www.hpcalc.org/authors/166 POLY was hugely popular at the time. I just wrote it to simplify my classwork.

Re: The HP-35: Consumer Electronics, an Origin Story

#57

Unfortunately, consumer electronics are not the same as the days of Braun. 70’s was the golden era. I was extremely pleased with my DM42 from SwissMicros. All of their models either have a Titanium or Steel case. The heft and quality is just absolutely beautiful. I spoke to Michael Steinmann and he seems to be a great guy passionate about what he does. I enjoyed our conversation about old school electronics. Check ou…

I'm thinking about purchasing one of these, glad to hear they're well liked.

Re: The HP-35: Consumer Electronics, an Origin Story

#58
post #48
post #38

While I am definitely fond of the HP-35 in a nostalgic sense, my real-life working calculator was the HP-48GX when I became a land surveyor. I added a COGO card that would calculate pavement design, storm water pipe modelling, and the area of a polygon after the coordinates of each point were given. And away I went. There wasn't much I couldn't do with that, graphing or calc-wise. Made my job so much easier in the fi…

The HP-48G/GX was also my calculator of choice and I really disliked the later HP49. However, I then tried the HP50G, and was instantly hooked. Once you get over the differences in key layout, it's like a HP-48GX loaded with tons of useful software, in a slightly better form factor. I now have a HP50G and a HP-48G, but I never use the older model. On iOS, I use the Emu50G app, which works, but could really use some i…

Voyage-200 on the TI side was great. A TI-89 with more RAM and horizontal full qwerty keyboard. A monster size wise, but I loved that thing.

Re: The HP-35: Consumer Electronics, an Origin Story

#59
post #42
post #7

I really really like HP calculators. The only one I have now is the HP-35s, a new version of HP-35. Once you go RPN, you can never go back! I have PCalc (another piece of amazing software) on my phone for RPN. It feels really stupid for others to see that I can't operate a normal calculator.

As someone who switched away from RPN (well RPL) I disagree. I was an HP48/50 series fanboy since about 1995 and before that RPN on a HP41. I was the weird kid at school who didn’t have a normal calculator and the teachers couldn’t help me. However I bought a Casio FX991EX recently after using my daughter’s unit which has a modern entry system, solver, engineering units, conversions and dual power. It’s pretty much p…

Yea, it's much easier to enter a matrix on a modern Casio than the HP calcs and requires fewer keystrokes I believe. I guess navigation of the indices takes up time on the Casio, but it is so intuitive.

Re: The HP-35: Consumer Electronics, an Origin Story

#60
post #45
post #22

Earlier quoted context omitted.

Ha ha, practically? She did. Keysight is what’s left of the original HP. HP is now known for garbage computers and shitty printers.

I feel that they're getting their legs back under their consumer division, although I agree their laptops have been really mediocre. However I have enjoyed using their enterprise workstations for the last 10 years are so (various models of Z4xx's) and haven't had any complaints.

I've had good experiences with their EliteBook lines. Solid machines, if you are closer to the rugged notebook vs thin trophy book on the scale of laptop thickness.
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