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The differential analyser , a mechanical analog computer designed to solve differential equations by integration , used wheel-and-disc mechanisms to perform the integration. In 1876 Lord Kelvin had already discussed the possible construction of such calculators, but he had been stymied by the limited output torque of the ball-and-disk integrators 14 In a differential analyzer, the output of one integrator drove the input of the next integrator, or a graphing output. The torque amplifier was the advance that allowed these machines to work. Starting in the 1920s, Vannevar Bush and others developed mechanical differential analyzers.
Consistently ranked among the top computer science programs in the nation, the Paul G. Allen School of Computer Science & Engineering educates tomorrow’s innovators and engages in research that advances core and emerging areas of the field. We also lead a broad range of multi-disciplinary initiatives that demonstrate the transformative power of computing and are nationally recognized for our success in promoting diversity. We are located in the spectacular Paul G. Allen Center for Computer Science & Engineering at the heart of the University of Washington campus in Seattle — a center of innovation in software, life sciences, global health, aerospace, and many other fields — where Allen School faculty, students, and alumni are making an impact and changing the world.
Today, computers make jobs that used to be complicated much simpler. For example, you can write a letter in a word processor , edit it anytime, spell check , print copies, and send it to someone across the world in a matter of seconds. All of these activities would have taken someone days, if not months, to do before. Also, these examples are just a small fraction of what computers can do.
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