The History of Calculators - Aaron Christiansen

[@kimchee94112]

Excellent video on the subject getting me up to date. No more slide rules and CRC Handbook look up tables. I pretty much stopped at HP-15c. TI SR-50 was my first couldn't afford the HP-35. I now have a collections of HPs including the 35 and HP 50g. No idea how to use the 50g, getting into the owner's manual later. Too bad RPN going out of favor.

[@marklgarcia]

Not sure how I ended up here, but I found this very interesting. I still use my HP-41CV that is now 40 years old.

[@lmpombo]

I lost count of the number of calculators I have. There can be computers, spreadsheets, mobile phones and the hell with numbers... I just love calculators in general. Of my favourites I even have multiples, like the HP-15c or the Casio fx-570ms or the TI-89. There is nothing better than a literal physical calculator to crunch numbers! This was an excellent video, thank you for it!

[@Alex-jb5tb]

Great documentary. Thank you !

[@michaelbauers8800]

I wasn't sure how we are supposed to subtract with the compometer gizmo, but 10's complement will always work, just like how computers use 2's complement. e.g. 23+76+1=100, ignore the carry. I notice that the calculator has the complements on the digits, e.g. 1 has an 8. This works fine, you enter 23, then enter the complement which is 76, then add 1.

[@andreduartebueno]

I loved the video. I had an HP11C, then an HP41CV, an HP48SX, an HP50G, an HP Prime, an HP35S, an HP15C, etc. With the ban on cell phones, we will see a return of calculators to classrooms, including engineering courses. Swiss Micro should grow in the market with the abandonment of HP. HP lost a fundamental niche, as calculators are the gateway to brand loyalty.