Tonight I am going to share a few pictures from my calculator collection.
These all bring back some good memories.
I will start with the Hewlett-Packard family.
The HP-28C was the first graphing calculator made by Hewlett-Packard. I bought this while I was in college when it first came out in 1987. I don’t remember the exact price that I paid for it, but the list price was $235. A lot of money for a struggling college student. However, this calculator was a great tool.
Now on to my Texas Instrument calculators.
This TI-59 was also used for the instrument that I mentioned above. With this calculator I also have different program strips that were read in with a strip reader. This way you could store program information and not have to reprogram formulas each time you used the calculator.
The TI-66 came out in 1983 and had a retail price of $70.
I have a few more calculators tucked away somewhere, but these are the ones that bring back the most memories.
I haven’t used any of these calculators for many years. I should find the right batteries and see if they still work. Unfortunately, they don’t all use the most common batteries 🙂
I also just bought a TI-83 graphing calculator, but not for myself. My niece just started college and needed one for a math class. The calculator was her graduation gift from me.
What calculator did you use in college or high school?