The Probert Encyclopaedia of Science & Technology

OS/2

OS/2 was the anointed successor to MS-DOS for Intel 286 and 386 based micros. Some say it was proof that IBM/Microsoft couldn't get it right the second time, either. On January the 28th, 1991, Microsoft announced that it was dropping its OS/2 development to concentrate on Windows, leaving
OS/2 entirely in the hands of IBM.
Research OS/2