Multiple choice general knowledge science & technology Where was the PLC first developed, and by who? In Germany by Werner von Braun In the USA by Dick Morley Not any one place or inventor In Japan by Yamaguchi Morimoto of Mitsubishi Reveal answer Fill a bubble to check yourself B Correct answer Explanation The first PLC was developed in 1968 at General Motors' Hydramatic division in the United States, with Dick Morley widely credited as the 'father of the PLC.' This revolutionized industrial automation by replacing hard-wired relay systems.