RIM-5 (Relational Information Manager) is a full relational DBMS that is
suitable for VERY large databases using B-Tree data storage.  It has a
crude (by today's standards) user interface, but since full source code is
provided, this can be fixed.  Versions of RIM run on a wide variety of
systems, small and large, and produce compatible databases.  Also includes
a built in HELP database and a programming language.  Full Fortran source
code and documentation included.  

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  298     974  30.6% -lh5- afd8 May 15  1988 Rim.info
[generic]                   56      56 100.0% -lh0- c886 May 15  1988 Rim/.info
[generic]                 1215    2388  50.9% -lh5- e3ca May 15  1988 Rim/Readme.First
[generic]                  446    2566  17.4% -lh5- 7cca May 15  1988 Rim/Readme.First.info
[generic]                  192     280  68.6% -lh5- 1148 May 15  1988 Rim/README.fnf
[generic]                  446    2566  17.4% -lh5- 906e May 15  1988 Rim/README.fnf.info
[generic]               105540  318468  33.1% -lh5- 3ac6 May 15  1988 Rim/Rim
[generic]                 1582    3134  50.5% -lh5- 9837 May 15  1988 Rim/RimAbstract.Txt
[generic]                  445    2566  17.3% -lh5- 1a28 May 15  1988 Rim/RimAbstract.Txt.info
[generic]                57644   57644 100.0% -lh0- 11b4 May 15  1988 Rim/RimDocs.Arc
[generic]                68117   68117 100.0% -lh0- 2d0f May 15  1988 Rim/RIMHelpDB.Arc
[generic]               303311  303311 100.0% -lh0- 8b48 May 15  1988 Rim/RimSrcAmi.Arc
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        12 files  539292  762070  70.8%            May 15  1988