NATS 1700 Lecture Notes - Lecture 3: Clifford Berry, John Vincent Atanasoff, Analytical Engine
31 Mar 2016
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Document Summary
From 1834 onwards babbage devises a series for plans for a second, improved and more complex machine. A programmable, general purpose, mechanical calculator capable of performing any calculation. It embodied many features which later reappeared in the modern stored program computer. As big as a locomotive and powered by a steam engine. Mill (processing unit) input and output, and a mechanism for iteration (loops) and conditional branching (if then statements) Adopted the jacquard punch cards (boards connected to each other and they had holes in them for rods) to enter numbers and control sequence o f operations. John v. atanasoff and clifford berry (iowa state university) built (1937: the prototype of abc, the first electronic, digital computer. A special-purpose calculator for solving linear equations. An electronic device is an electrical device that operates by controlling the flow of elections or other electrically charged particles in vacuum tubes or in semiconductors.
