floppy disks?

[rikona]

I need to get some files from some VERY old MS floppy disk archives.
Running Ubuntu 16.04 updated but thinking of upgrading. Can I buy and
use a USB floppy disk drive to read these disks on a plug and go basis?
If so, do I have to buy certain drives to work well with Ubuntu?

Will I have to download any software to do this, or perhaps do this in a
better way? Some may be early floppies and have lower density - might
these not be readable by what is now recognized by Ubuntu? Also, will
newer or older versions of Ubuntu have more/less/the same capability
for old floppies?

Even worse, I also have some 8-inch floppies from ancient CPM days. Is
there any way to read such floppies now?

I guess what I needed to do was to transfer files every time a new
generation of storage came out. Archives are not really archives
if there's no way to read them. :-((

Any info much appreciated.