• Thumbnail for Zenith Z-89
    Zenith Z-89 (redirect from Heathkit H89)
    Classic Heathkit Computers and Heathkit H89 Emulators in Javascript (online) and C++ old-computers.com Connecting a virtual diskette drive to the H89 Actual...
    8 KB (780 words) - 04:02, 24 February 2024
  • Thumbnail for Heathkit
    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...
    27 KB (3,008 words) - 01:15, 6 June 2024
  • Thumbnail for Heathkit H8
    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...
    18 KB (2,193 words) - 01:49, 5 August 2024
  • garage, which he converted into an office, to develop software for the Heathkit H89 microcomputer. It quickly expanded into video games, releasing Airport...
    22 KB (2,162 words) - 09:13, 20 May 2024
  • 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...
    5 KB (426 words) - 09:19, 3 July 2024
  • Thumbnail for Personal computer
    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...
    90 KB (9,664 words) - 16:55, 30 September 2024
  • Thumbnail for Machine code monitor
    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...
    4 KB (386 words) - 22:20, 6 September 2023
  • Thumbnail for Zilog Z80
    Z-100, despite having previous experience with its pioneering Z80-based Heathkit H89 and Zenith Z-89 products. However, other computers were made integrating...
    117 KB (12,545 words) - 04:47, 29 August 2024
  • 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...
    15 KB (1,914 words) - 00:23, 14 August 2024
  • Thumbnail for Zenith Data Systems
    Zenith Data Systems (category Heathkit)
    Electronics), after they had purchased the Heath Company and, by extension, their Heathkit line of electronic kits and kit microcomputers, from Schlumberger in October...
    61 KB (5,932 words) - 18:49, 27 June 2024
  • Thumbnail for Kansas City standard
    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...
    18 KB (2,128 words) - 04:55, 29 August 2024