have you ever withnessed calculators not working anymore due to corrupted memory?

[Dave Frederickson]

(05-02-2017 09:57 AM)pier4r Wrote:  I knew what is a [rom] but normally those are hardly read only in later calculators (or even computer bios) but I did not know the additional details, so thanks for sharing.

Let's be clear about this definition. ROM means Read-Only Memory. Modern computers store their BIOS in flash which is Non-Volatile RAM, or NVRAM, meaning that the contents of memory is retained without power. Your computer's BIOS used to be stored in EPROM, a UV-erasable type of ROM.

Our calculators may have NVRAM, but it shouldn't be referred to as ROM.

Dave