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Frances V. Spence ( Bilas; March 2, 1922 – July 18, 2012) was an American physicist and computer scientist. She was one of the original programmers for the
ENIAC ENIAC (; Electronic Numerical Integrator and Computer) was the first Computer programming, programmable, Electronics, electronic, general-purpose digital computer, completed in 1945. Other computers had some of these features, but ENIAC was ...
(the first electronic digital computer). She is considered one of the first computer programmers in history. The other five ENIAC programmers were Betty Holberton, Ruth Teitelbaum,
Kathleen Antonelli Kathleen Rita Antonelli ( McNulty; formerly Mauchly; 12 February 1921 – 20 April 2006), known as Kay McNulty, was an Irish computer programmer and one of the six original programmers of the ENIAC, one of the first general-purpose electronic ...
, Marlyn Meltzer, and
Jean Bartik Jean Bartik ( Betty Jean Jennings; December 27, 1924 – March 23, 2011) was an American computer programmer who was one of the original six programmers of the ENIAC computer. Bartik studied mathematics in school then began work at the Unive ...
.


Early life

She was born Frances V. Bilas in
Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
in 1922 and was the second of five sisters. Her parents both held jobs in the education sector, her father as an engineer for the Philadelphia Public School System and her mother as a teacher. Bilas attended the South Philadelphia High School for Girls and graduated in 1938. She originally attended
Temple University Temple University (Temple or TU) is a public university, public Commonwealth System of Higher Education, state-related research university in Philadelphia, Philadelphia, Pennsylvania, United States. It was founded in 1884 by the Baptist ministe ...
, but switched to Chestnut Hill College after being awarded a scholarship. She majored in mathematics with a minor in physics and graduated in 1942. While there, she met
Kathleen Antonelli Kathleen Rita Antonelli ( McNulty; formerly Mauchly; 12 February 1921 – 20 April 2006), known as Kay McNulty, was an Irish computer programmer and one of the six original programmers of the ENIAC, one of the first general-purpose electronic ...
, who later also became an
ENIAC ENIAC (; Electronic Numerical Integrator and Computer) was the first Computer programming, programmable, Electronics, electronic, general-purpose digital computer, completed in 1945. Other computers had some of these features, but ENIAC was ...
programmer.


Personal life

In 1947, she married Homer W. Spence, an Army electrical engineer from the
Aberdeen Proving Grounds Aberdeen Proving Ground (APG) is a U.S. Army facility located adjacent to Aberdeen, Harford County, Maryland, United States. More than 7,500 civilians and 5,000 military personnel work at APG. There are 11 major commands among the tenant units, ...
who had been assigned to the ENIAC project and later became head of the Computer Research Branch. They had three sons (Joseph, Richard, and William). Frances Spence had continued working on the ENIAC in the years after the war, but shortly after her marriage, she resigned to raise a family. She died in 2012 and is buried at the Cemetery of the Holy Rood in Westbury, Nassau County, New York, USA


ENIAC career

The ENIAC project was a classified project by the
US Army The United States Army (USA) is the primary land service branch of the United States Department of Defense. It is designated as the Army of the United States in the United States Constitution.Article II, section 2, clause 1 of the United Stat ...
to construct the first all-electronic digital computer. While its hardware was primarily built by a team of men, its computational development was led by a team of six programmers (called "
Computers A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations ('' computation''). Modern digital electronic computers can perform generic sets of operations known as ''programs'', ...
"), all women from similar backgrounds as Spence. Despite her importance as one of the original programmers of the ENIAC, the role that she and the other female programmers took on was largely downplayed at the time due to the stigma that women were not interested in technology. Photos of the women working on the computer often went without credit in newspapers at the time, and when the ENIAC was completed and unveiled to the public on February 15, 1946, the US Army failed to mention the names of the female programmers who had programmed the machine to run such sophisticated calculations. This further contributed to the perceived disconnect between women and computing. Frances Bilas and the other women were originally hired by the
University of Pennsylvania The University of Pennsylvania (Penn or UPenn) is a Private university, private Ivy League research university in Philadelphia, Pennsylvania, United States. One of nine colonial colleges, it was chartered in 1755 through the efforts of f ...
's Moore School of Engineering to create the ENIAC, which was needed to compute
ballistics Ballistics is the field of mechanics concerned with the launching, flight behaviour and impact effects of projectiles, especially weapon munitions such as bullets, unguided bombs, rockets and the like; the science or art of designing and acceler ...
trajectories as part of a team of eighty women. The Moore School of Engineering was funded by the US Army, and at the time they were hiring female programmers in particular due to the fact that many young American men were fighting overseas in
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. Bilas and her Chestnut Hill College classmate
Kathleen Antonelli Kathleen Rita Antonelli ( McNulty; formerly Mauchly; 12 February 1921 – 20 April 2006), known as Kay McNulty, was an Irish computer programmer and one of the six original programmers of the ENIAC, one of the first general-purpose electronic ...
were part of a smaller team within the ENIAC team. In addition to their larger programming duties, they were also assigned to the operation of an analog computing machine known as a
Differential Analyzer The differential analyser is a mechanical analogue computer designed to solve differential equations by integration, using wheel-and-disc mechanisms to perform the integration. It was one of the first advanced computing devices to be used ope ...
, which was used to calculate ballistics equations (something which all the women on the ENIAC team were proficient at doing by hand). When the War ended, both Spence and Antonelli continued working with the ENIAC and they collaborated with other leading mathematicians.


Legacy

In 1997, Spence was inducted into the Women in Technology International Hall of Fame, along with the other original ENIAC programmers. Their work paved the way for the electronic computers of the future, and their innovation kick-started the rise of electronic computing and computer programming in the Post-World War II era. In 2010, a documentary called, "'' Top Secret Rosies: The Female "Computers" of WWII''" was released. The film centered around in-depth interviews of three of the six women programmers, focusing on the commendable patriotic contributions they made during World War II.The ENIAC team is the inspiration behind the award-winning 2013 documentary ''The Computers''. This documentary, created by Kathy Kleiman and the ENIAC Programmers Project, combines actual footage of the ENIAC team from the 1940s with interviews with the female team members as they reflect on their time working together on the ENIAC. It is the first documentary of a series of three, and parts two and three will be entitled ''The Coders'' and ''The Future-Maker'', respectively.


See also

*
Kathleen Antonelli Kathleen Rita Antonelli ( McNulty; formerly Mauchly; 12 February 1921 – 20 April 2006), known as Kay McNulty, was an Irish computer programmer and one of the six original programmers of the ENIAC, one of the first general-purpose electronic ...
*
Jean Bartik Jean Bartik ( Betty Jean Jennings; December 27, 1924 – March 23, 2011) was an American computer programmer who was one of the original six programmers of the ENIAC computer. Bartik studied mathematics in school then began work at the Unive ...
* Betty Holberton * Adele Goldstine * Ruth Teitelbaum * Marlyn Meltzer *
Timeline of women in science This is a timeline of women in science, spanning from ancient history up to the 21st century. While the timeline primarily focuses on women involved with natural sciences such as astronomy, biology, chemistry and physics, it also includes women f ...


References


External links


The Women of ENIAC
* {{DEFAULTSORT:Spence, Frances 1922 births 2012 deaths Chestnut Hill College alumni Scientists from Philadelphia Place of death missing American women computer scientists American computer scientists Human computers Temple University alumni 21st-century American women