ARPANET

Technology

Robert Taylor

Research manager who launched the ARPANET and led Xerox PARC’s computer lab

1932 – 2017

Science

Leonard Kleinrock

UCLA scientist whose lab sent the first message over the ARPANET

Born 1934

Technology

Larry Roberts

ARPA programme manager who designed and led the ARPANET

1937 – 2018

Technology

Wesley A. Clark

Engineer who designed the LINC, an early personal computer

1927 – 2016

Technology

Ray Tomlinson

Programmer who sent the first networked email and chose the @ sign

1941 – 2016