1. History of the Computer Industry
... the Abacus. It dated back almost 2000 years ago. It was just a wooden rack holding 2 parallel wires with beads strung on it. When these beads were move the user must memorize, and place that in arithmetic operations. In 1694 a man named Blaise Pascal invented the first digital calculating machine. It could add numbers by turning dials. It was used to help ... ...
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- Grade Level: High School