On October 4, 1903 was born John Vincent Atanasoff. He was an American-bulgarian physicist and inventor, best known for being credited with inventing the first electronic digital computer.Atanasoff invented the first electronic digital computer in the 1930s at Iowa State College. Challenges to his claim were resolved in 1973 when the Honeywell v. Sperry Rand lawsuit ruled that Atanasoff was the inventor of the computer. His special-purpose machine has come to be called the Atanasoff–Berry Computer.
https://en.wikipedia.org/wiki/John_Vincent_Atanasoff
On October 6, 1939 was born Sheila Adele Greibach. She is a researcher in formal languages in computing, automata, compiler theory and computer science. She is an Emeritus Professor of Computer Science at the University of California, Los Angeles, and notable work include working with Seymour Ginsburg and Michael A. Harrison in context-sensitive parsing using the stack automaton model.
https://en.wikipedia.org/wiki/Sheila_Greibach
On October 7, 1919 was born Henriette Davidson Avram. She was a computer programmer and systems analyst who developed the MARC format (Machine Readable Cataloging), the international data standard for bibliographic and holdings information in libraries. Avram’s development of the MARC format in the late 1960s and early 1970s at the Library of Congress had a revolutionizing effect on the practice of librarianship, making possible the automation of many library functions and the sharing of bibliographic information electronically between libraries using pre-existing cataloging standards.
https://en.wikipedia.org/wiki/Henriette_Avram