He frequently uses Programmable Logic ... The image above shows the PLC in a water-tight electrical box with extension cords running to each of the devices he wishes to control.

Despite what the cool kids are doing over on Hackaday Projects, the vast majority of vintage computers used some form of programmable logic for memory control, address decoding, and all that other ...

A programmable logic controller (PLC) is an industrial solid-state computer that monitors inputs and outputs, and makes logic-based decisions for automated processes or machines. 1. The image ...