Mark Dean and his co-inventor Dennis Moeller created a microcomputer system with bus control means for peripheral processing devices. Their invention paved the way for the growth in the information technology industry. We can plug into our computers peripherals like disk drives, video gear, speakers, and scanners. Dean was born in Jefferson City, Tennessee, on March 2, 1957. He received his undergraduate degree in electrical engineering from the University of Tennessee, his MSEE from Florida Atlantic University, and his Ph.D. in electrical engineering from Stanford University. Early in his career at IBM, Mark Dean was chief engineer working with IBM personal computers. The IBM PS/2 Models 70 and 80 and the Color Graphic Adapter are among his early work. He holds three of IBM’s original nine PC patents.