Note: To create space, some .ARC files were compressed. The decompress utility can be built using the files in [5,14]lzpdp11.arc using the procedure documented therein. This was necessary to get the tape to a reasonable size. Compressed files are flagged by Z as the 2nd character of the filetype (e.g. DATMGR.AZC resulted from DATMGR.ARC). Decompress to get the archive. DATMGR.ARC is a VAX relational DBMS (single user). You may want it if you have a VAX. All docs and build files are there with all sources.