description Heathkit H89 Overview
The Heathkit H89 was an all-in-one microcomputer introduced by Heath Company in 1979 and sold both as a self-assembly kit and in assembled form as the Heath/Zenith Z-89. It combined a Zilog Z80 processor, keyboard, monochrome terminal display, and floppy-disk storage in one enclosure. The machine could run HDOS or CP/M and was intended for programming, education, and small-business applications rather than modern graphical computing.
help Heathkit H89 FAQ
What processor did the Heathkit H89 use?
The H89 used a Zilog Z80 processor, a popular 8-bit CPU of the late 1970s. It combined that processor with a keyboard, monochrome terminal display, and floppy-disk storage.
Was the Heathkit H89 sold as a kit or a finished computer?
Heath Company sold the H89 as a self-assembly kit, while an assembled version was sold as the Heath/Zenith Z-89. This made it part computer project and part ready-to-use terminal system.
When was the Heathkit H89 introduced?
The Heathkit H89 was introduced in 1979. Its all-in-one case integrated the computer and terminal instead of requiring a separate keyboard and display.
What operating systems could run on the H89?
The H89 was associated with CP/M and Heath's HDOS software environment. Its floppy drives and Z80 architecture made it useful for text work, programming, and early business applications.
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