The Basics of Computers

1) Introduction A computer is a tool and teammate in all(prenominal) sphere of human life and activity. Computers are bring umteen changes in industry, government, education, medicine, scientific research, law, social service and horizontal arts like music, movies and paintings. The areas of application of computers are confined barely by the limitation on creativity and imagination. 1.1) Definition A computer is an electronic motorcar, adequate of performing basic trading operations like addition, subtraction, coevals, plane section and so forth The computer is alike capable of storing information, which arsehole be utilise posterior. It can serve up millions of instructions in a fewer seconds and at the equivalent time with high accuracy. Hence a computer can be defined as an reflexive electronic machine for performing calculations or controlling operations that are speakable in numerical or perspicuous terms. 2) History 2.1) 2500 BC - The Abacus Abacus is t he first known calculating machine employ for counting. It is do of form strung on cords and is utilise for dim-witted arithmetic calculations. The cords correspond to positions of decimal human bodys. The form translate digits. Numbers are represented by beads nasty 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 scar up consisted of nine rods, one for each digit 1 through with(predicate) 9 and a constant rod for the digit 0. A rod is similar to one column of a multiplication table. 2.3) 1633 AD - The Slide Rule The slide master was invented by William Oughtred. It is establish on the principle that actual duration from the starting specify of the rule is directly proportional to the logarithm of the numbers printed on the rule. The... If you want to get a copious essa! y, order it on our website: BestEssayCheap.com

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