S100 Computers

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Mountain Hardware  -  100,000 Day Clock Board 

This board was designed to provide the date and time for S-100 systems!  Time events in 100 usec. up to 100,000 days (273 years) were possible. The board could call any one of the S-100 interrupt lines.

RTC Board

The following documentation for this board can be obtained here:-


Mountain Hardware  S-100 Boards
100,000 Day clock board     AC Controller    EPROM Programmer


This page was last modified on 09/20/2020