This book is the outgrowth of a set of notes prepared over the years for the advanced undergraduate subject Engineering of Computer Systems (6.033, originally 6.233). This subject has been offered by the Department of Electrical Engineering and Comp
Motivation Programmable Logic Controllers (PLC), a computing device invented by Richard E. Morley in 1968, have been widely used in industry including manufacturing systems, transportation systems, chemical process facilities, and many others. At th
