Computers-how They Affect Our Lives

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they had to be entered by turning dials. It was designed to help Pascal's father who was a tax collector.
In the early 1800's, a mathematics professor named Charles Babbage designed an automatic calculation machine. It was steam powered and could store up to 1000 50-digit numbers. Built in to his machine were operations that included everything a modern general-purpose computer would need. It was programmed by--and stored data on--cards with holes punched in them, appropriately called "punchcards". His inventions were failures for the most part because of the lack of precision machining techniques used at the time and the lack of demand for such a device.
After Babbage, people began to lose interest in computers. However, between 1850 and 1900 there were great advances in mathematics and physics that began to rekindle the interest. Many of these new advances involved complex calculations and formulas that were very time consuming for human calculation. The first major ...

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machine, called the Harvard Mark I, handled 23-digit numbers and could perform all four arithmetic operations. Also, it had special built-in programs to handle logarithms and trigonometric functions. The Mark I was controlled
from prepunched paper tape. Output was by card punch and electric typewriter. It was slow, requiring 3 to 5 seconds for a multiplication, but it was fully automatic and could complete long computations without
human intervention.
The outbreak of World War II produced a desperate need for computing capability, especially for the military. New weapons systems were produced which needed trajectory tables and other essential data. In 1942, John P. Eckert, ...

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