Let's hear it for HP...

[TheFamilyMan 243]

HP and their RPN syntax...totally forgot that that ever existed.

Cool pics everyone, thanks for sharing.   None of my old calculators survived being old enough to hang on to. 

[jcomm 5,461]

My first "computer" was a Ti-58 🙂

The HPs were great, but used that awkward RPN 😕

[Jayjay 47]

17 minutes ago, jcomm said:

My first "computer" was a Ti-58 🙂

Same for me, followed by a Sinclair ZX80

Jean-Jacques

[Penzoil3 465]

22 hours ago, birdguy said:

Have you ever used a circular slide rule?  They fit into a shirt pocket better than a linear slide rule.  I've used both until calculators became available.

How about an E6B?  It's a circular slide rule of sorts.  Just for a different purpose. 

Noel

One of these ?

[birdguy 3,812]

Yep Sue, that's it.  I used it many times during my flight instruction and my first cross country solos.  That plus a chart on my lap where I had circled landmarks to look for along my course.

Noel

[Bert Pieke 7,398]

7 hours ago, jcomm said:

The HPs were great, but used that awkward RPN

Which is quite addictive, once you get used to it... still use the HP12C to do my taxes, every year.. 🙂

[jcomm 5,461]

57 minutes ago, Bert Pieke said:

Which is quite addictive, once you get used to it... still use the HP12C to do my taxes, every year.. 🙂

That's why you feel at ease with even a Trimble 2000 aviation GPS 🤣

Edited October 17, 2022 by jcomm

[birdguy 3,812]

I'm so used to RPN I have to think a while when using the conventional calculator in my glove compartment to calculate mileage when I buy gasoline.

Noel