Automation Engineering Fun: PC vs PLC is an age old industrial automation argument, this funny video shows how the Programmable Automation Controller (PAC) has made that argument mute. as well as muting the PLC vs Microcontroller discussion, as they are one in the same. (But inflames the PLC vs DCS argument, which is really PAC/SCADA vs DCS) For more help deciding which one in your automation engineering project, see http://bin95.com/PLC-PAC-Difference.htm