The medieval scientists and practitioners were both rather wrong about what was going on inside. However, both computer scientists and computer engineers have

The medieval scientists and practitioners were both rather wrong about what was going on inside. However, both computer scientists and computer engineers have a good fundamental understanding of how their systems work. If we're talking about the process of building them, then yes, I would agree, but I think its more akin to the science of management, and people like Drucker, than medieval phlebotomists.