Programmable controllers (AKA programmable logic controller) are used to control lots of different processes in industry, such as machinery on assembly lines. Because their logic control programming can be easily reconfigured, so can the automated processes they control, thereby lending greater versatility to production processes. They are also used to control a wide variety of non-industrial timed and sequential processes such as traffic signals, as well as fireworks displays and other amusements. PLC’s are supported by a wide variety of programmable controller accessories.