BlueBird SuperDOS is a proprietary multi-tasking multi-user system
built to run business applications simultaneously over dumb
terminals, replacing expensive mainframe/minicomputers with a single
commodity PC.
Business Computers systems, and then IBM PC systems. It grew to
support protected mode on 386/486 systems. Although it uses MS/PC-DOS
to install, "Protected Mode SuperDOS is a freestanding operating
system that is not dependent on either DOS or the ROM BIOS.". Most
applications for it are written in BlueBird SuperDOS Business Basic.
and moving-and-storage companies that needed workstations at many
points for data entry, but did not want to put a powerful and
expensive computer on every desk.
Office, Manufacturing, Auto Rental, Van and Storage, Wholesale
Distribution, and Word Processing. Most of these were ported from
Data General compatible Business Basic software.
multi user basic-oriented product was Thoroughbred/OS, and much later
Citrix Multiuser attempted to fill a similar role.