One" computer. The H8 and H89 ran the Heathkit custom operating system HDOS as well as the popular CP/M operating system. The H89 contained two Zilog Z80...

Classic Heathkit Computers and Heathkit H89 Emulators in Javascript (online) and C++ old-computers.com Connecting a virtual diskette drive to the H89 Actual...

terminal to be truly useful; Heathkit introduced several terminals as well. A successor model, the "All-in-One" Heathkit H89, combines a Z80 processor board...

garage, which he converted into an office, to develop software for the Heathkit H89 microcomputer. It quickly expanded into video games, releasing Airport...

computer kits known as Heathkits, starting with the Heathkit H8, followed by the Heathkit H89 in late 1979. With the purchase of the Heathkit H8 you would obtain...

operating system, originally written for the Heathkit H8 computer system and later also available for the Heathkit H89 and Zenith Z-89 computers. The author...

in some computers (e.g., the built-in monitors in the Commodore 128, Heathkit H89 and Zenith laptops). Often, computer manufacturers rely on their ROM-resident...

Z-100, despite having previous experience with its pioneering Z80-based Heathkit H89 and Zenith Z-89 products. However, other computers were made integrating...

others) HBN Computer (Le) Guépard HC-88 HC-2000 Heath/Zenith Heathkit H90|H90 and Heathkit H89/Zenith Z-89 Hewlett-Packard HP-85 / HP-87 (with addition of...

Electronics), after they had purchased the Heath Company and, by extension, their Heathkit line of electronic kits and kit microcomputers, from Schlumberger in October...

baud) Heathkit H8 (300 and 1200 baud) Zenith Z-89 — also sold as the Heathkit H89 (300 and 1200 baud) MicroBee Systems MicroBee (300 and 1200 baud) MSX...