[DoodleBob]

Clearly, the author never used the HP 12C. Not only is this da bomb, but you can throw it at a wall (usually after the NPV comes back negative) and it won't break.

[Vermont Lt]

I used to love mine. I wonder what box it’s in?

[VanDeKoik]

I’ve made a lot of money selling vintage ones.

[ProtectOurFreedom]

This is my iPhone 6+ calculator. You'll appreciate it:

I bought my 11C and 12C calculators in 1980 or thereabouts. Those were the pinnacle of perfection in my book. They are still going strong, but I've switched to using the RLM calculator on the iPhone because it is always in my pocket. There's an old saying about cameras that also applies to calculators: "The best camera is the one you have with you."

[editor-surveyor]

.
That looks like the re-issued 12c.

Excellent unit.

[colinhester]

Would love to have my 41CV back....was stolen out of my lab my years ago.

[Aevery_Freeman]

Are you kidding me?

TI-84 is da bomb.

Wrote a lot of programs on that.

[noiseman]

I worked in the electronics department of my college bookstore when I was in college. Sold tons of HP 12Cs. The most common “problem” that students would come back to ask about was how to change the decimal separator from a comma to a decimal point (if I remember right for some reason out of the box it was set to default to comma). It took all of one second to hold down the decimal key, change it back, and leave them feeling foolish for not having read the manual (no one ever did).

Also had a homeless guy who would come in and browse once in a while. One time he showed me the HP-41C he said he had found in the trash (never knew if that was true), along with a slew of program cartridges and other accessories for it. Funny thing was, he knew all about it and knew how to use it. If I remember right, he said he had once been an engineer, before whatever happened (likely alcohol) that drove him to the streets. The 41C was an amazing device; it was like the Swiss Army knife of calculators.

[HartleyMBaldwin]

RPN forever! I still use my HP-15C every day, and dread the day it dies.

[Quality_Not_Quantity]

I used mine to calculate the stopping distances for subway trains. I wrote a program to do it. It was slick.

That Reverse Polish Notation and the 4-variable stack was all I needed.

[null and void]

I still have my HP 45.

Could use a new battery, though...

[HotHunt]

I've used an HP-12C calculator since the late 70s when I was a mortgage broker. I could run circles around the advocates of the Texas Instrument counterpart.

I even taught classes to mortgage and real estate employees on how to use the 12C.

I still use it to this day. Old habits are hard to break.

[bigbob]

Kept losing pocket calculators so I now have an HP-85 in my shop. Desktop computer and instrument controller.

[Ouderkirk]

I had a 28S.

THe RPN is hard to be for the simple logic of it. Once you got used to using it, it is hard to go back.

12, 3, +, 15.

[Paul R.]

Clearly, the author never used the HP 12C. Not only is this da bomb, but you can throw it at a wall (usually after the NPV comes back negative) and it won't break.

Good one!

[Truthoverpower]

Yep
And for writing my detailed engineering reports
I need a REAL COMPUTER
MY OLD SAYING
my phone and my computer. Tge Twain Shall NEVER meet

[MarkL]

It’s funny that you mentioned that... In a post I just did, I mentioned how much I still love my HP-41CV!

Mark

“Hey man, where’s da equals key?”

[cb]

dang right!

[VietVet876]

I bought mine when Regan was nearing the end of his first term. My real estate career started in residential sales in 1979 and I am still active on the appraisal side. My 12C is really beat up but still works perfectly. I replaced the battery once when G.W. Bush was president. After the towers fell.

[dmcnash]

I have a HP15C. Some times I have thought that if I was allowed only one possession, the 15C would be it.