Have you ever seen 1970s CNC gear? I came across a 1970s CNC lathe in a surplus store once. The thing was the size of a small car. The electronics box was the s

Have you ever seen 1970s CNC gear? I came across a 1970s CNC lathe in a surplus store once. The thing was the size of a small car. The electronics box was the size of two racks. Inside were cards that handled one bit of one register. Input was from a paper tape. No CPU; all special purpose electronics. Directly controlling industrial machines from a microprocessor was very rare before the 1980s.