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."
Streetsweepers Entertainment was created in 2000.
Lightstorm Entertainment was created in 1990.
Backbone Entertainment was created in 1992.
Grandslam Entertainment was created in 1987.
Funky Entertainment was created in 1979.
Entertainment Building was created in 1993.
HIT Entertainment was created in 1989.
Visual Entertainment was created in 2005.
Shemaroo Entertainment was created in 1962.