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[Phrede]

I had all but forgotten about RPL or LISP. I did use it back in the day. Back when I did Fortran on punch cards.

For this brief use its more about input, maybe storing a few variables and standard scientific functions. No routines, constants, formulas or programs allowed. Having a stack is important.

I got a grin when I saw the whopping 128k memory card in it. Looks similar to PCMCIA. I also have an RS-232C cable I used a lot and used the IR too. It was a real powerhouse then. I've used RPN ever since even if not on that handheld.

I've got to solve a mystery about a HP charger I found that I thought went with it but obviously not. 3 pins in an Isoceles shape. Also stored with them was a Post slide rule that I thought about using for a hot second. The good old days.