PC Hardware Essentials
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Dean was part of the team that developed the ISA bus, which allows accessory like printers, keyboards, disks to be plugged directly into a PC.
Dean led a design team making a one-gigahertz computer processor chip.
Dean is the first African-American to become an IBM Fellow, which is the highest level of technical excellence at the company.
In 1997, Dean was inducted into the National Inventors Hall of Fame.
