Multics Relational Data Store

from The Free On-line Dictionary of Computing (8 July 2008)

Multics Relational Data Store
MRDS

   <database> (MRDS) The first commercial {relational database},
   implemented as part of {Multics} by Jim Weeldreyer and Oris
   Friesen of {Honeywell} Phoenix in about 1977.  MRDS included a
   report writer called LINUS written by Jim Falksen.

   (1997-01-29)