Difference between pocket computer and programmable calculator?

[johanw]

(09-08-2022 07:31 AM)C.Ret Wrote:  No, dear friends, the only real difference between pocket calculators and pocket computers is the presence of dedicated keys for trigonometric calculations of SIN COS and TAN as well as LN and EXP for logarithmic calculations. Authentic pocket calculators necessarily have at least one or other of these keys usually grouped together or aligned on their keyboards.

That doesn't sound right. Take for example some similar form factor models that were sold as pocket computers: the Casio PB-100 (no dedicated trig keys, but you could type "SIN" etc. on the keyboard, and the similar Sharp models like the 1401 who had a set of "calculator keys" added. Both fall obviously in the same category, and I would call them pocket computers. Certauinly in those days, when they were more comparable with the "real" computers beng sold then.

Of course, modern phones with a touchscreen can have any (virtual) keys you like. And they definitely have more computing power than the homecomputers from the 1980's. So calling those pocket computers would be valid IMO.