System versus disk backup
I know this topic has been addressed in the forums, the user manual, tutorials, etc., but I'd like to make a simple clarification and I want to be sure what I'm saying is correct. Am I correct in summarizing the difference like this:
"A system backup is just a subset of a disk backup.".
By this I mean that if I do a disk backup on the drive containing my operating system, I get a backup of all partions on the disk, including the operating system, any data files on the disk, as well as the boot sectors. Thus, if this drive fails, I can use this backup to restore my system onto a new, replacement disk drive, and restoring this backup will result in a bootable disk, as if the failure never happened. Is this a correct assertion?