IIMU that the Explorer's 68K option was the same design as the NuMachine/Lambda 68K board with the addition of a license-protection PAL/ROM combination that pre

IIMU that the Explorer's 68K option was the same design as the NuMachine/Lambda 68K board with the addition of a license-protection PAL/ROM combination that prevented Unix from running if a matching paddlecard (containing the license key) was missing.