A database? Yes, in the generic sense of the term rather than any specific sense like RDBMS etc. I never encountered BeOS, but I did have passing flirtations with two other systems who's filesystems retained more information about a given dataset than just name/who/when/how big, namely PICK and MUMPS. Both also went to the great bit bucket in the sky although there are still small pockets of resistance clinging on to the use of both.
Examine what is said, not who speaks.
The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.