fx-9860gii-2 brief introduction

[klesl]

(11-20-2019 01:43 PM)Mjim Wrote:  

(11-20-2019 01:06 PM)Dave Britten Wrote:  From an end-user perspective, it's almost exactly like the fx-9860g, i.e. nothing is lost by leaving the calculator powered off for hours/days. You'll simply notice a delay of a second or two next time you turn it on, while main memory is being restored. It's like the hibernation feature in Windows, and the TI-84 CE appears to do something very similar (it even shuts down the realtime clock, meaning you'll have to reset the time and date if the 84 hasn't been used for a few days).

This sounds fantastic, but this comment by piu58 seems to suggest that not all of the RAM is backed up to the flash:

"If you run a program which need some time for calculation, and you don'*t wait for the result, it may be your results are lost. The calculator switches off automatically if not used for a period of time. The cg20 stores information as long as battery life."

I figured with a hibernation feature, RAM, CPU cache and the current memory pointers would all be copied from flash so that nothing at all would be lost, including the current progress through a long calculation that is in RAM.

The running of the program is different situation, Yo can expected such behaviour since the values assigned to variables are volatile.
It's the same situation similir to the Windows, when I turn the PC off (or sleep or hibernate) during some activity (e.g.video conversion), the activity or result is lost.