Groupe
Bull is a global company that took over Zenith Data Systems in 1989.
This documentation belongs with an early Intel based desktop family known as
the Z-400+ and the manual remains in the original sealed plastic cover
whilst the flexible diskette remains in a closed software envelope which
has some age marks. Perhaps a vintage collector could pair this with an
aging Zenith computer but whatever, expect the video to reflect the
limitations of the eighties era.