A programmable logic controller, PLC, or programmable controller is a digital computer used for automation of typically industrial electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or light fixtures.PLCs are used in many machines, in many industries. programmable logic controller, PLC, or programmable controller is a digital computer used for automation of typically industrial electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or light fixtures.
title / office. Sam Houston, byname of Samuel Houston (born March 2, 1793, Rockbridge county, Virginia, U.S.âdied July 26, 1863, Huntsville, Texas), U.S. lawyer and politician, a leader in the Texas Revolution (1834â36). 1  In his youth Houston moved with his family to a farm in rural Tennessee after the death of his father in 1807.
Sam Sheppard. This article is about the exonerated physician. For the filmwriter and actor, see Sam Shepard. Samuel Holmes Sam Sheppard, D.O. ((1923-12-29)December 29, 1923 â April 6, 1970(1970-04-06)) was a Bay Village, Ohio neurosurgeon initially convicted for the 1954 murder of his wife, Marilyn Reese Sheppard. The case was highly controversial from the beginning, with extensive and prolonged nationwide media coverage.