25 Years of Programming
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Heathkit H-100 / Zenith Z-100 programs

DeSmet C Functions and programs written using the DeSmet C compiler.
GWBASIC Programs written in Microsoft GWBASIC
File Allocation Table information The web page for my Borland C++ program for reading absolute disk sectors has a data table summarizing FAT types for various H-100 disk formats, and a partial debug listing of the boot loader for a 96 TPI disk, with its data fields labeled.

A site search will turn up additional references to the H-100 throughout the site in text documents and project notes.

I have a few H-100 related hardware items available for sale on the prospective eBay auctions page.

If you had a H-100 in the 1980's, you might remember these two graphics. Click for full-size:

Screenshot from a 1980's H-100 GWBASIC program that drew a pyramid. Screenshot from a 1980's H-100 GWBASIC program that drew tiles.

Other Heathkit / Zenith H-100, Z-100 sites

Herb Johnson's Retrotechnology website Comprehensive resource for H-100 / Z-100 and other S-100 systems, with replacement and add-on cards, parts, software, manuals and other documentation, magazine back-issues, plus links to other H/Z-100 and S-100 related websites.
The Z-100 LifeLine Web Site Newsletter published since 1989 for Heath/Zenith H/Z-100 computer users, with an index to back issues. Also has other resources and links to other H/Z100 and Heathkit/Zenith related websites.
Google Group for Zenith (Heathkit) H-100 / Z-100 The Google Groups interface to the comp.sys.zenith.z100 public Usenet discussion group.

 

 

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