Heathkit/Zenith Data Systems Computers (1977 - mid-1980s)
Heath Company was one of the key players at the beginning of the personal computer revolution. Today, most people carry vastly more computing power and storage in the form of a small phone. These early systems had processors which ran at 2 MHz, supported at most 64k of memory, and used floppy disks which could stored about 100k.
In the mid 1980s they started making IBM PC compatible systems, like most of the industry. They had some excellent designs/systems, but this site is focused exclusively on the pre-IBM PC computers, their software, and accessories.
Latest News
06/22/2024
More improvements have been made to the H89 emulation in Mame, including adding support for SigmaSoft graphics, the MMS 77316 DD floppy controller, and the H88 Cassette Interface board.
09/22/2023
I've made some improvements to the H89 javascript emulator. And have been working on the H19 and H89 emulator in MAME. The H89 in MAME is now considered "working" due to the emulation of the Z-89-37 soft-sectored controller. For up-to-date status and the ROMs needed to run these machines, visit my mame page.
01/11/2023
I've received several more donations of equipment, manuals, software, etc. There have been other updates to several of the pages on the site, and expect more changes to be coming soon.
