[RetroTechie]

Imho it depends on context:

For memory (ROM / RAM etc) the 2^x convention applies. 1GB = 1024MB etc.

For background storage (harddisks, USB sticks, optical, tape etc), that used to be true as well. But long ago manufacturers' marketing corrupted this into the decimal 1G = 1000M meaning.

But distinction can be fuzzy sometimes. And subject to abuse. So when in doubt: read the fine print.

[fl7305]

Definitely.

But my point was that Gibibytes did not replace Gigabytes.

It was just that some hard drive manufacturers successfully introduced marketingspeak into the computer world. It wasn't that the computer world all agreed upon switching to SI units.