The H-800 design was part of a family of 48-bit word, three-address instruction format computers that descended from the Datamatic 1000, which was a joint Honeywell and Raytheon project started in 1955.
[2] The basic system had: Extra peripherals could be added running through additional controllers with a theoretical possibility of 56 tape units.
[3] Multiprogram control allowed up to eight programs to be sharing the machine, each with its own set of 32 special registers.
[3] If the floating point unit was not installed, the floating-point commands were implemented by software simulation.
Peripheral devices included: high-density magnetic tapes, high-speed line printers, fast card and paper tape readers and punches to high-capacity random access magnetic disc memories, optical scanners, self-correcting orthoscanners and data communications devices.