Ok, the customized 4K Altair BASIC lives as a 3 minute track on an audio CD (still trying to make a backup of the original cassette format to go with the short boot loader - that's trickier), and working on getting an 8K Altair BASIC on fresh media (need that to run a REAL Startrek). Another project in the tapes is an 'OS' based on a Byte book called 'Threaded Interpretive Languages' - just curious what opionions are out there about FORTH as an 8-bit os. It seemed like just the right balance of control - not as terse as assembly, and not as handcuff'd as BASIC. What other 8-bit languages/os's were there? What ever happened to APL? Is there a Tiny-C available somewhere? Chuck cswiger(a)widomaker.com