SK*DOS was originally designed to run all the same programs which run with Flex from Technical Systems Consultants. There is a wide variety of software available, including Basic, editors, assemblers and cross-assemblers, sort-merge, text processors and formatters, compilers for Pascal, C, and Basic, modem programs, spell checkers, etc.
It is available in several variations (depending on your hardware), and is also supported by other manufacturers.
Individual copies of SK*DOS cost $75; a Configuration Manual is available for $25.
STAR-DOS can run on any CoCo I or II system from 16K up, and costs $34.95.
STAR-DOS PLUS+ runs Flex and SK*DOS/6809 programs, uses the same disk format, supports single or double density, single or double sided disks, etc. It adheres closely to the 6809 SK*DOS implementations on larger 6809 systems.
STAR-DOS PLUS+ comes with the same detailed user's manual as our larger systems, and costs just $34.95 (Sorry - STAR-DOS PLUS+ is not available for the Color Computer III.)