what were pre-unix file systems like? it sounds like storing bytes in a file in a directory which is a kind of file was innovative, but it's effectively all the

what were pre-unix file systems like? it sounds like storing bytes in a file in a directory which is a kind of file was innovative, but it's effectively all there is today! i know old macs had various attributes - e.g. you could store the owner of an file so when you opened it, it would run in the program that generated it, not necessarily the default for files of this type. but is that the alternaitive he had in mind?