When you look at autonomous systems, however, the advance can seem so vast that it’s not always as easy to see the origin point in traditional manufacturing systems. This can be seen at all levels of automation-from the evolution of relays into programmable logic controllers to the enterprise, where the all-encompassing ERP (enterprise resources planning) systems were developed from expansions of material requirements planning (MRP) software over the course of several years. Looking back through the history of automation, it’s not difficult to see how most advances are extensions of existing technologies.
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