Dean, Mark
1957- · Contribution: 1980s
ISA bus development; co-creation of IBM personal computer

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Impact on the world
Led the team that developed the ISA bus and co-created the original IBM PC; later led the team that built the first 1-gigahertz computer chip.
Life & background
A computer scientist and engineer at IBM, Dean led the development of the Industry Standard Architecture (ISA) bus and held three of the nine original patents for the IBM personal computer. He later led the team responsible for the first gigahertz chip and was inducted into the National Inventors Hall of Fame in 1997.
Sources
- IBM (official history); National Inventors Hall of Fame; Lemelson-MIT
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