This lecture provides a quick review of the Shockley MOS transistor model, focusing on the fundamental elements of nMOS and PMOS transistors, the switch model for functional considerations, basic CMOS logic gates construction, and the operation of nMOS and PMOS transistors. It also covers the design parameters, Shockley 1st order nMOS and PMOS models, and the I-V characteristics of nMOS and PMOS transistors.