description Gene Amdahl Overview
Gene Amdahl was a prominent American computer engineer who significantly shaped mainframe design. He led architectural efforts at IBM, notably with the System/360, and later founded his own company, Amdahl Corporation. His work established Amdahl's Law, a critical concept in understanding the limitations of parallel processing speedup for computers. This law is particularly relevant to computer scientists, software developers, and system architects involved in designing high-performance computing systems.
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Gene Amdahl ranks #70 of 141 in the Engineer ranking, behind Jörg Schlaich, ahead of Ettore Bugatti.
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What was Gene Amdahl's role in IBM System/360?
Amdahl served as chief architect of IBM's System/360, announced in 1964. Its compatible family of mainframes allowed customers to move between models without replacing all their software.
What does Amdahl's Law say about faster computers?
Amdahl's Law states that the serial portion of a workload limits the maximum benefit obtainable from parallel processing. Even if many processors accelerate one part of a program, an unchanged sequential part eventually dominates total runtime.
Why did Gene Amdahl start Amdahl Corporation?
He founded Amdahl Corporation in 1970 to build mainframes compatible with IBM systems. The company's machines competed directly with IBM by running much of the same customer software.
Did Gene Amdahl work on computers before System/360?
Yes. At IBM he helped design the IBM 704 and led work on the experimental Stretch computer, formally known as the IBM 7030. Those projects preceded his leadership on the System/360 architecture.
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