This is the directory for DEC Rainbow 100[+/A/B].

The subdirectories are:

ccpm          Concurrent CP/M-86 and some utilities
cpm           Software for CP/M-80/86
doc           Rainbow related documents and texts
misc          Diagnostic software and such
msdos         Software for MS-DOS 2.05, 2.11 and 3.10b
p-system      SofTech Microsystems UCSD p-System