what is manual era in computer
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The computer age began when ENIAC (Electronic Numerical Integrator and Calculator) was completed in 1945. The first multipurpose computer, ENIAC set speed records with an amazing 5,000 additions per second. Computers have come a long way since—a laptop today can do 500,000,000 additions per second.
That’s not the only difference. ENIAC weighed more than 30 tons, filled an 1,800-square-foot room and included 6,000 manual switches. It used so much electricity that it sometimes caused power shortages in its home city of Philadelphia. By contrast, a notebook PC today might weigh in at about 3 pounds.
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