Qdos Entertainment was created in 1986.
QDOS was a subset of CP/M, then Microsoft bought QDOS and made it MS-DOS. FOXTROT!
qdos (quick dirty operating system) was created by seattle computing Microsoft bought qdos and created ibm-dos and dos 1.0 while trying to mimic the company cp/m or something to that degree. some or most people that i know would say he stole it even though he payed 50,000$ for the rights to qdos.
QDOS was developed by Tim Paterson. Microsoft bought the source and rights from him, and developed it further to create PC-DOS, which they licensed to IBM. They later licensed it to other companies branded as "MS-DOS."
Quick and Dirty Oprating System
Lakeshore Entertainment was created in 1994.
NCircle Entertainment was created in 2006.
Relic Entertainment was created in 1997.
Rex Entertainment was created in 1995.
Nerjyzed Entertainment was created in 2003.
Entertainment Today was created in 1967.
Robbins Entertainment was created in 1996.
Trill Entertainment was created in 2000.