What I'm finding is that there are two basic functions bundled under the heading "back up"
One is a System backup, for restoring if you get attacked, etc, and the other is for plain Data backup.
Then there are two ways of doing it.
One creates a thing like an Archive of everything you backed up, so a file has to "restored" out of the archive to somewhere before you can use it. That takes up as much space as the Archive!.
That may be more efficient for incremental and differential backups, but it seems to be a bloody nuisance to me.
The second method is just a simple Copy file by file.
Both the above can be scheduled.
WHat I haven't got to grips with yet, for the multiple different programs is whether they can still do incremental folder backups, and if not incremental backup entities as such, (ie by keeping a list of files and their access dates) what they do if a file already exists.
A Major problem with the simple Incremental Backup tools (like EaseUS) is that they expect you to do a big initial backup, followed by scheduled incremental backups. That sounds fine, but if you're working with external Terabyte+ drives on USB2 links the initial backup can take far too long - they tell yo not to use any other program while theirs is running.
I don't want to lose the computer for a couple of days! What you can't do is combine several "initial" backups into one. That means you have to do a whole bunch of Initial, then Incremental, backups. Not on.
What ( all!) I need is something which is scheduled, copies from one folder tree to another, skips files which haven't been altered, works in the background properly so I can run other things, doesn't mind being stopped in the middle (you'd just restart it and it would skip everything already copied, as before).
And keep a log file.
Is that hard? I'm still looking, it takes a while to find out.