Here is something kind of fun from the wiki page on
the original Westworld movie:
The technicians running Delos notice problems beginning to
spread like an infection among the androids: the robots in Roman World and Medieval World begin experiencing an increasing number of breakdowns and systemic failures, which are said to have spread to West World. When one of the supervising computer scientists scoffs at the "analogy of an infectious disease," he is told by the Chief Supervisor (
Alan Oppenheimer), "
We aren't dealing with ordinary machines here. These are highly complicated pieces of equipment, almost as complicated as living organisms. In some cases, they've been designed by other computers. We don't know exactly how they work."