can you view older versions of a drawing in pdm

We are not using pdm but a sister site is. I'm being told we don't want pdm because we can't view older versions of an assembly/part... I'm not sure this is correct? Right now we are just using folders for parts/tools/etc. I see problems coming and want to know everything I can about pdm... I'd like to attend solidworks world but not sure my company will send me...

Anyway, my question is, can we archive old versions of files.

SolidworksDrawings And Detailing