LSI Octopus (code name LSI M5)
Concurrent-DOS 4.1 XIOS Level 25 April 1989
Octopus DSDD 400KB Format

OCTCD411.IMD, 1 of 7, System Boot Disk + Utilities
OCTCD412.IMD, 2 of 7, Utilities
OCTCD413.IMD, 3 of 7, CDOS Generation Components
OCTCD414.IMD, 4 of 7, CDOS Generation Components
OCTCD415.IMD, 5 of 7, Network Generation Components (Darcnet/DRNET)
OCTCD416.IMD, 6 of 7, Small O/S for ADDNET  1024 Directory Entries
OCTCD417.IMD, 7 of 7, Small O/S for ADDNET  2048 Directory Entries