... use the punch cards as a means for data processing until the 1960's. Following years, couple of engineers made significant advances. One of them was Vannevar Bush (1890 - 1974) who developed a calculator for solving differential equation in 1931. The machine could solve complex differential equations but it was cumbersome due to its hundreds of gears and shafts in order to represent numbers ... and their relationships. To eliminate the bulkiness of Vannevar's calculator, a professor (John V. Atanasoff) and his graduate student (Clifford Berry) envisioned an all-electronic computer that a...

• Word Count: 2409
• Approx Pages: 10
• Grade Level: High School

... procedures. As early as the 1640's mechanical calculators were being manufactured for sale. Records exist of earlier machines, but it is common belief that Blaise Pascal invented the first commercial calculator, a hand powered adding machine. A step towards automated computing was the development of punched cards, which were first used successfully with computers in the 1890 census. Herman Hollerith of MIT developed ... Moore School of Electrical Engineering of University of Pennsylvania decided to build a high - speed electronic computer to do the job. This machine became known as ENIA...

• Word Count: 1419
• Approx Pages: 6