The Basics of Computers

1) Introduction A computer is a tool and abetter _or_ abettor in all(prenominal) sphere of human life and activity. Computers are rescue umteen changes in industry, government, education, medicine, scientific research, law, social service and level off arts like music, movies and paintings. The areas of application of computers are confined whole by the limitation on creativity and imagination. 1.1) Definition A computer is an electronic apparatus, adequate of performing basic operations like addition, subtraction, coevals, subdivision and so forth The computer is likewise capable of storing information, which stub be utilise posterior. It can performance millions of instructions in a fewer seconds and at the analogous time with high accuracy. Hence a computer can be defined as an reflexive electronic machine for performing calculations or controlling operations that are expressible in numerical or perspicuous terms. 2) History 2.1) 2500 BC - The Abacus Abacus i s the first known calculating machine employ for counting. It is make of form strung on cords and is utilise for unreserved arithmetic calculations. The cords correspond to positions of decimal names. The form be digits. Numbers are represented by beads impede to the crossbar. Abacus was mainly used for addition and subtraction and later for division and multiplication. 2.

2) 1614 AD - Napiers Bones The Napiers Bones was invented by John Napier, a Scottish mathematician as an aid to multiplication. A set of marking up consisted of nine rods, one for each digit 1 through with(predicate) 9 and a constant rod for the d igit 0. A rod is similar to one column of a ! multiplication table. 2.3) 1633 AD - The Slide Rule The slide rationale was invented by William Oughtred. It is establish on the principle that actual length from the starting specify of the rule is directly proportional to the log of the numbers printed on the rule. The... If you want to get a undecomposed essay, order it on our website: OrderCustomPaper.com

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