On May 19, 1955 was born James Arthur Gosling, often referred to as “Dr. Java”, OC. He is a Canadian computer scientist, best known as the founder and lead designer behind the Java programming language. He got the idea for the Java VM while writing a program to port software from a PERQ by translating Perq Q-Code to VAX assembler and emulating the hardware. He was working at Sun Microsystems from 1984 to 2010 (26 years). He left Sun Microsystems on April 2, 2010 after it was acquired by the Oracle Corporation. In March 2011, Gosling left Oracle to work at Google.
Source: https://en.wikipedia.org/wiki/James_Gosling
On May 21, 1921 was born Alexander Shafto “Sandy” Douglas. He was a British professor of computer science, credited with creating the first graphical computer game OXO, a Noughts and Crosses (Tic -Tac – Toe) computer game in 1952 on the EDSAC computer at University of Cambridge.
Source: https://en.wikipedia.org/wiki/Sandy_Douglas
On May 22, 1973 Robert Metcalfe, a researcher at the Xerox Palo Alto Research Center in California, writes his original memo proposing an “Ethernet,” a means of connecting computers together. The memo describes the Ethernet network system he had invented for interconnecting advanced computer workstations, making it possible to send data to one another and to high-speed laser printers.
Source: https://www.computerhistory.org/tdih/may/22/#xerox-researcher-proposes-ethernet
On May 23, 1989 died Karl Werner Lothar Koch. He was a German hacker in the 1980s, who called himself “agbard”, after Hagbard Celine. He was involved in a Cold War computer espionage incident.
Koch was loosely affiliated with the Chaos Computer Club. He worked with the hackers known as DOB (Dirk-Otto Brezinski), Pengo (Hans Heinrich Hübner), and Urmel (Markus Hess), and was involved in selling hacked information from United States military computers to the KGB.
Source: https://en.wikipedia.org/wiki/Karl_Koch_(hacker)