Yeah I'm struggling with that bit also; shouldn't information content be defined as the difference between a storage device with all bits set to the same 0 or 1

Yeah I'm struggling with that bit also; shouldn't information content be defined as the difference between a storage device with all bits set to the same 0 or 1 value, vs. a device with all bits set to purely random values? And can you isolate a measure of information content from the system that generates that information?