Difference between pocket computer and programmable calculator?

[rprosperi]

I tend to agree with Günter, it's more the language and style of use that differentiates, though both the 41 (with Forth and HP-IL) and the 71 (w/Calc Mode - shudder!) cross these lines and blur the distinctions (perhaps on purpose).

But it's this core difference that make the TI-95 a calculator, while the TI-74 is a pocket computer, despite looking about the same from 6 feet away.