Commodore 1541 Parallel Cable with ZoomFloppy & Burst Nibbler Demo
This is my Commodore 1541 with a parallel cable installed in it.
This video show that and how the cable works with a ZoomFloppy
and with a Commodore 64.
Silent Service uses the below ship ID from the manual for a format of copy protection.
When you start a mission you are given this screen to ID the ship: