Mark Dean is an alumnus who holds more than 40 patents, including three of the PC’s nine original patents. He was hired in 2013 as the John Fisher Distinguished Professor in the Tickle College of Engineering. Prior to joining UT he spent more than three decades at IBM, where he eventually became chief technology officer of the Middle East and Africa as well as an IBM fellow. Dean worked with his colleague Dennis Moeller at IBM to develop the Industry Standard Architecture (ISA) systems bus for plugging disk drives, printers, and monitors directly into computers. His work and leadership also led to the development of the color PC monitor and the first gigahertz processor chip. Dean, who graduated from UT in 1979 with his bachelor’s degree in electrical engineering, served as interim dean of the Tickle College of Engineering from August 2018 through July 2019.