Difference between pocket computer and programmable calculator?

[John Keith]

(09-22-2022 07:06 AM)johnb Wrote:  There's ample precedent for the design of powerful write-only programming languages. Ever tried to read APL? (If you learn to write it, your mind will be permanently twisted.)

There is an apocryphal story about a new computer science student who asked his professor how long it would take to learn LISP. The professor said, "Well, if you don't have any experience with other programming languages, it will probably take you about a week" The student asked, "What if I already know FORTRAN?" The professor replied, "About two weeks".

I was already familiar with LISP and FORTH when the HP-28 came out, so RPL seemed quite natural to me.

Back on topic, my opinion is that it's a pocket computer if it is landscape format and has a QWERTY keyboard.