Great Women Rulers of Tech

12" Wooden Ruler made in U.S.A. of American-grown basswood. This ruler features women who made an important name for themselves in various fields of technology, but most particularly in computer science. When working with Charles Babbage on his Analytical Engine (considered to be the first computer), Ada Lovelace (1815-1852), daughter of the poet Lord Byron, kept elaborate notes that included what many consider the first computer program. U.S. Navy rear admiral Grace Hopper (1905-1992) was part of the team that developed the UNIVAC computer, an early mainframe, and then went on to lead the team that developed a number of programming languages, including the very important COBOL. During her lifetime she received 40 honorary degrees from universities around the world. Many early computer scientists worked at NASA, America’s space agency, including African-Americans Katherine Johnson (1918-2020) and Mary Jackson (1921-2005). Another NASA software engineer, Margaret Hamilton (1936- ), was