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John Karlin

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John Karlin

John Elias Karlin

Former Industrial Psychologist at Bell Labs


Born 28-02-1918 in Johannesburg South Africa

Deceased 28-01-2013 (94 years old)

John Karlin was an Industrial Psychologist at Bell Labs. He is credited with designing the modern keypad. Karlin found that the rectangular arrangement of the numbers on a dialing pad follows people's logical thoughts, and the keypad design he championed became an international standard, not only for phones, but also gas pumps, door locks, vending machines, calculators and cell phones.

He introduced the push-button dialing pad on 18 November 1963.



Professional details

Previous Position(s)

Head | Human Factors Engineering Department | Bell Labs
1951 - 1977

Building, Construction and Engineering



Educational history

Tertiary

University of Cape Town

Master’s Degree - Mathematical Psychology

University of Cape Town

Bachelor’s degree - music, philosophy, and psychology

Activities

Other Activities

Violinist

Cape Town String Quartet

Violinist

Cape Town Symphony Orchestra

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