fx-9860gii-2 brief introduction

[Dave Britten]

(11-20-2019 09:17 AM)klesl Wrote:  ...also I've heard the CG50 has SDRAM which loses memory after being powered off for about an hour...
I don't observe this behaviour on my fx-CG50. I turn the calc on after 48 hours and the history is still visible at least in run- matrix, statistics, spreadsheet, graph, 3D graph.

It saves the contents of memory to flash after a couple of hours then fully powers down the memory. When you turn it on again, it reloads main memory from flash. The earlier models (fx-9860, etc.) also save to flash some time after being turned off, but they don't power down the main memory. It's intended more as a backup in case the batteries die/are removed.