Tuesday, February 26, 2019

Northstar S-100 Motherboard



Photos of a Northstar Computer S100 motherboard.

There  are two serial ports, bootstrap rom and options, and a parallel in and out port on the rear of the motherboard, along with regulation for that logic, and for the +5 +12 for the floppy drives in the system.

Link is for Horizon system, but includes motherboard schematic.

http://bitsavers.org/pdf/northstar/ns_hrzd.pdf













No comments:

Post a Comment