Jean Bartik Best Female programmer During World War 2

Jean Jennings Bartik (December 27, 1924 – March 23, 2011) was one of the original programmers for the ENIAC computer. She studied mathematics in school then began work at the University of Pennsylvania, first manually calculating ballistics trajectories, then using ENIAC to do so.

 She and her colleagues developed and codified many of the fundamentals of programming while working on the ENIAC, since it was the first computer of its kind.

 After her work on ENIAC, Bartik went on to work on BINAC and UNIVAC, and spent time at a variety of technical companies as a writer, manager, engineer and programmer. She spent her later years as a real estate agent and died in 2011 from congestive heart failure complications.

Early life and education

Born Betty Jean Jennings in Gentry County, Missouri, in 1924, she was the sixth of seven children. Her father, William Smith Jennings (1893-1971) was from Alanthus Grove, where he was a schoolteacher as well as a farmer. Her mother, Lula May Spainhower (1887-1988) was from Alanthus. Jennings had three older brothers, William (January 10, 1915) Robert (March 15, 1918); and Raymond (January 23, 1922); two older sisters, Emma (August 11, 1916) and Lulu (August 22, 1919), and one younger sister, Mable (December 15, 1928).

In her childhood, she would ride on horseback to visit her grandmother, who bought the young girl a newspaper to read every day and became a role model for the rest of her life. She began her education at a local one-room school, and gained local attention for her softball skill.
In order to attend high school, she lived with her older sister in the neighboring town, where the school was located, and then began to drive every day despite being only 14. She graduated from Stanberry High School in 1941, aged 16.

She attended Northwest Missouri State Teachers College, majoring in mathematics with a minor in English and graduating in 1945.
 Jennings was awarded the only mathematics degree in her class. Although she had originally intended to study journalism, she decided to change to mathematics because she had a bad relationship with her adviser. Later in her life, she earned a master's degree in English at the University of Pennsylvania in 1967 and was awarded an honorary doctorate degree from Northwest Missouri State University in 2002.

In 1945, the Army was recruiting mathematicians from universities to aid in the war effort; despite a warning by her adviser that she would be just "a cog in a wheel" with the Army, and despite encouragement to become a mathematics teacher instead, Bartik decided to become a human computer. Her calculus professor, encouraged Bartik to take the job at University of Pennsylvania because they had a differential analyzer.

She applied to both IBM and the University of Pennsylvania at the age of 20. Although rejected by IBM, Jennings was hired by the University of Pennsylvania to work for Army Ordnance at Aberdeen Proving Ground, calculating ballistics trajectories by hand
While working there, Bartik met her husband, William Bartik, who was an engineer working on a Pentagon project at the University of Pennsylvania. They married in December 1946.

When the Electronic Numeric Integrator and Computer (ENIAC) was developed for the purpose of calculating the ballistic trajectories human computers like Bartik had been doing by hand, she applied to become a part of the project and was eventually selected to be one of its first programmers. Bartik was asked to set up problems for the ENIAC without being taught any techniques
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