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Q: trace the history of computer from 12th century till date
A: Computers have evolved from the fundamental principles of mathematical calculation and language processing. [ The computing systems of today are an outcome of the efforts and intellect of mathematicians, logicians, linguists and technologists from all over the world. Computer history comprises the evolutionary journey of computing systems, the timeline of operating systems as well as the history
behind the development of a wide variety of computer software and hardware. How did the different types of computers evolve? Here is a brief overview of the progress of computing technology from calculators of the 18th century right up to the modern-day digital portable computers. Year Technology Used Before 1801 Calculators were the earliest computing devices. They were the only computation tools for long years before the creation of computers. 1801 The years that followed were dominated by the use of punched cards for computing. The users used to submit programming assignments to a computer center using stacks of cards. The programs used to be queued for processing and execution. 1930 - 1960 Desktop mechanical calculators were built during the 1930s. During the 1950s and the '60s, electronic desktop calculators came up. Analog computational technologies predominated this period. 1940 - 1960 This span of time witnessed the emergence of the digital computing technology. Zuse Z3, ENIAC and EDSAC were some of the early digital computers. First-generation computers were based on the von Neumann architecture. The second generation computers were characterized by the replacement of vacuum tube by bipolar transistors. They were composed of printed circuit boards. After 1960 These years witnessed the development of the third generation computers. They were based on integrated circuits. Computer systems of this period had large storage capacities and high processing powers. Multi-core CPUs became available in the 21st century. Laptops, palmtops, handheld PCs, notebook computers and tablet PCs are popular today. ]
venkatv|Points 221|
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Asked 7/7/2012 1:10:54 PM
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