Apollo Computer was one of the original graphical workstation vendors in the 1980's, along with Sun Microsystems. Both companies used the Motorola 68000 processor to great success in their UNIX-based systems. Apollo's computers used Domain OS, based on BSD Unix
In 1981, it unveiled the DN100 workstation which provided minicomputer performance with high-resolution graphics capabilities. At the end of 1987, it was third in market share after Digital Equipment Corporation and Sun, and ahead of HP and IBM.
It was acquired by HP in May 1989 for US $476 million.
