North Star Computers was originally named Kentucky Fried Computer [1][2] and changed their name prior to the release of their Horizon product, an eight-bit business computer that was shipped with the then industry-standard CP/M operating system or North Star's proprietary operating system, NDOS.
While initially successful, North Star's sales suffered from the company's short-sighted adherence to hard sector floppy drives which made software difficult to port onto North Star machines. It was no longer a significant factor in the industry by the time less-expensive CP/M computers with built-in displays (and soft-sectored drives), such as the Osborne and the Kaypro, were released.
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The Horizon was an 8-bit ZiLOG Z80A-based computer, typically with 16K to 64K of RAM. It had one or two single-sided single or double density hard sectored floppy disk drives (expandable to 3 or 4), and serial interfaces connected it to a computer terminal and a printer. It ran CP/M or North Star's own proprietary HDOS.
The Advantage was a 4MHz Z80a-based computer with 64K of user RAM and 16K of graphics RAM. It used two single-sided, double density 180K floppy disk (hard sectored) drives and an optional 5MB Winchester disk. The Advantage was known for its graphics capabilities and was sold with four demonstration programs, one of which plotted and calculated a pattern of lines reminiscent of the Arcade game Qix. The Advantage also had an optional 8088 co-processor board available that ran MS-DOS 1.0.
The Dimension was a server computer. Based on the 80186 chip at the server, the Dimension employed multiple screens each connected to a PC-compatible 8086-based slot card that mounted in the server. The screens and keyboards then connected to the workstation cards in the server. The unit shipped with MS-DOS and Novell NetWare was available as an option. The Dimension was North Star's last product, and did not enjoy the success of North Star's previous models.