06-05-2022, 03:29 AM
I'm trying to come up with an extensive list. Let me know if I forgot any:
TI
(Of these, I own the 2 TIs as well as the HPs 67, 97 and 41CV)
Notes
TI
- SR-52
- 59
- 65
- 67
- 97
- 41C
- 71B
- 75
- Casio PRO fx-1
(Of these, I own the 2 TIs as well as the HPs 67, 97 and 41CV)
Notes
- HP-41C seems to be the only one where the card reader is not built-in
- I have seen the Casio calculator exactly once, when a high-school friend brought to class his dad's
- HP-97 seems to be the only non-handheld of the lot
- I find remarkable that the first (?) programmable handheld calculator, the HP-65, already had a built-in card reader