DRDOS originated in 1987 at Digital Research, Inc.; was then acquired by Novell in the early 90s; in 1996, DR-DOS was acquired by Caldera, Inc., the same company that sued and settled out-of-court with Microsoft Corporation over DOS-related anti-trust allegations; in 1998, it was spun out to Lineo, Inc. where it underwent enhancements targeted at the embedded market and, in October 2002, was acquired by a new company aptly called DRDOS, Inc.