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Heathkit's H8 is an Intel 8080A-based microcomputer sold in kit form starting in 1977. The H8 is similar to the S-100 bus computers of the era, and like those machines is often used with the CP/M operating system on floppy disk .
First 8-bit Heathkit H8 computer (1978) Before entering the burgeoning home computer market, Heathkit marketed and sold microprocessor-based systems aimed at learning about this technology. The ET-3400, for example, was released in 1976 and was based on the Motorola 6800 microprocessor.
The Z-89 is a personal computer introduced in 1979 by Heathkit, but produced primarily by Zenith Data Systems (ZDS) in the early 1980s. It combined an updated version of the Heathkit H8 microcomputer and H19 terminal in a new case that also provided room for a built-in floppy disk on the right side of the display.
Zenith Data Systems Corporation (ZDS) was an American computer systems manufacturing company active from 1979 to 1996.It was originally a division of the Zenith Radio Company (later Zenith Electronics), after they had purchased the Heath Company and, by extension, their Heathkit line of electronic kits and kit microcomputers, from Schlumberger in October 1979.
Heathkit H8: Intel 8080: 1977: All parts, case and power supply, detailed instructions: Heathkit was a notable manufacturer of electronics kits: Heathkit H11: LSI-11: 1977: All parts, case and power supply, detailed instructions: A 16-bit microcomputer compatible with a PDP-11: Electronics Australia 77up2 aka "Baby 2650" Signetics 2650: 1977 ...
HDOS is an early microcomputer 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 was Heath Company employee Gordon Letwin, who later was an early employee of Microsoft and lead architect of OS/2.
Benton Harbor BASIC and Extended Benton Harbor BASIC were two versions of the BASIC programming language written by Heathkit for their H8 microcomputers.The BASICs were patterned on Dartmouth BASIC, and thus differ in some respects from the many Microsoft BASIC clones of the late-1970s era.
Heathkit made the H8 Home computer kit available. It was based on an Intel 8080A processor and shipped with HDOS (Heathkit Disk Operating System) and Benton Harbor BASIC. 1978: US Tandy upgraded the TRS-80 with a much improved Microsoft 8K "Level II BASIC", and an "expansion interface" which added 32 KB RAM, A floppy disk and a printer ...
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