ops/s/$ Had Three Growth Curves 1890-1990

1890-1945

Mechanical

Relay
7-year doubling

1945-1985

Tube, transistor,..

2.3 year doubling

1985-2000

Microprocessor

1.0 year doubling

Combination of Hans Moravac + Larry Roberts + Gordon Bell

WordSize*ops/s/sysprice

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