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August 26 - Blog Post 1 (Personal Biography)

Written by Oreoluwa Alebiosu on August 26, 2013.

Hi, this is my first blog post. My name is Oreoluwa Alebiosu. I grew up in Nigeria and am mostly referred to as Ore (especially because it is easier to say). I am a Masters student in Department of Computer Science at University of Illinois Urbana-Champaign . I received my Bachelors at Kansas State University.

My research interests are in machine learning, human computer interaction (HCI), software testing and verification, and (mobile) software design and development. My advisor is Professor Tao Xie and I work in the Illinois Automated Software Engineering Group within the Programming Languages, Formal Methods, and Software Engineering area.

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An Early Computer- Schickard's Calculating Clock

Written by Oreoluwa Alebiosu on September 2, 2013.

Wilhelm Schickard, born on April 22, 1592 was a German professor of Hebrew, who later became a professor of Astronomy. Schickard was born in the small south German town, Herrenberg. He was educated at nearby Tubingen, in a Protestant theological seminary known as Tubinger Stift. He obtained a Bachelor's Degree in 1609 and a Master's Degree in Theology 2 years later. He became a Lutheran minister in 1613; furthermore, he continued ministering until 1619. He was appointed Professor of Hebrew in 1619 at the University of Tubingen. After 1631, he later became a Professor of Astronomy, including analytical fields such as Mathematics and Computer Science ("History of Computers.. Wilhelm Schickard.").

He is credited for inventing the first true mechanical calculator in 1623, known as The "Calculating Clock". The name "Calculating Clock" is somewhat misleading as it does not tell time. However, he became famous in the second part of the 20th century after Dr. Franz Hammer (a biographer of Johannes Kepler) claimed that letters written by Schickard to Johannes Kepler in 1623 and 1624 included the drawings of a calculating clock, twenty years before Pascals' invention. In the letters, Schickard noted his machine as Rechen Uhr - Calculating Clock. Unfortunately, the Calculating Clock did not make it to the present day. However, the letters sent from Schickard to Johannes Kepler which includes sketches of the machine were found ("Schickard's Calculating Clock." ). More >>