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People Decade Early Bell Bell Labs Business Digital Electronics Math Wireless Telegraph Switching

Claude Shannon

Father of information theory

John R. Pierce

Pulse code modulation co-developer

John Bardeen

Transistor co-inventor

Sallie Pero Mead

Sallie Pero Mead

Mathematician and wireless innovator

Harry Nyquist

Transmission engineering and communications systems

John Renshaw Carson

John Renshaw Carson

AT&T transmission engineering leader

Otto Julius Zobel

Otto Julius Zobel

Filter design and theory pioneer

George Ashley Campbell

George Ashley Campbell

Long-distance telephony innovator

Manfred R. Schroeder

Manfred R. Schroeder

Speech coding innovator

Bishnu S. Atal

Speech coding innovator

Ralph Hartley

Information theory innovator

Erna Schneider Hoover

Erna Schneider Hoover

Computerized telephone switching innovator

Richard Hamming

Richard Hamming

Pioneering mathematician

Sergei Alexander Schelkunoff

Sergei Alexander Schelkunoff

Waveguide propagation researcher

Neil Sloane

Integer encyclopedia creator

Ruth A. Weiss

Programming language innovator

Hendrik Wade Bode

Hendrik Wade Bode

Pioneer of control theory and electronic telecommunications

Marion Cameron Gray

Marion Cameron Gray

Discovered the Gray graph

Jessie MacWilliams

Jessie MacWilliams

Coding theory innovator

George Stibitz

Relay-based computer circuitry pioneer

John Tukey

Data analysis pioneer and FFT developer

Maurice Karnaugh

Maurice Karnaugh

Developed pulse code modulation at Bell Labs

William A. Massey

William A. Massey

Queueing theory expert

Oliver Heaviside

Oliver Heaviside

Transmission innovator (inductive loading)