"File types"

[der Mouse]

> Are you asking, "Did any system keep file type information out of the
> file name?"  The answer is "yes, several did".

This puts me in mind of VMS, which had fairly rich file structure.  I
recall fumbling about with CONVERT /FDL on occasion.  It had things
like record-based files and even much (most? all?) of what today I'd
call ISAM available in the filesystem....

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