Heathkit H89 - 1979 - Eski Resimler
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Eski Arabalar


Heathkit H89 - 1979

IBM 5120 - 1980   IBM Portable PC - 1978   

Heathkit H89 - 1979


Heathkit H89 - 1979
Description: Following the success of their Heathkit H8 computer from 1977, Heathkit released the Heathkit H89 "all-in-one" computer in late 1979.

This system was available as both a kit to be assembled by the purchaser (model H89), or as an assembled and tested system (model WH89), although the WH89 cost $700 more.

The H89 is both a general-purpose terminal and a high-quality computer, with seperate Z80 processors and circuity for each function.

The H89 comes with the MTR-88 'monitor' program in ROM, which allows the user to operate at machine level or use the system without disk drives or cassette tape.

Software included with the H89 includes:
HDOS Disk Operating System
HDOS Utilities
Text Editor
Bentor Harbor BASIC

After 1979, Heathkit systems started appearing labeled as "Zenith Data Systems". The Zenith Radio Company had bought-out Heath in an attempt to enter the personal computer business, and shortly afterward stopped offering electronic kits of any kind - it was becoming cheaper, and certainly easier, to just buy your electronics already assembled and tested.

Heathkit H89
Available: 1979
Price: US$1,695.00 (kit form)
CPU: Zilog Z80, @ 2.0 MHz
RAM: 16K, 48K max.
Display: 12-inch monochrome CRT
80 X 24 text, no graphics
Storage: 102K hard-sectored floppy drive
built-in cassette interface
OS: 'monitor', HDOS (Heath DOS)
Keywords: Heathkit H89 - 1979
Date: 11.12.2015 21:03
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Date created: 01.05.2006 14:50:49
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