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.
Currently I cannot find any information/manual about this board. If you
would like to share a manual/software with others please let me know.