FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The abacus is a computing device on which arithmetic calculations are performed by sliding counters (beads, pebbles, or flat discs) along rods, wires or lines. The instrument may have originated in the Middle East before the time of Christ.

Detailed explanation-2: -An abacus is a calculation tool used by sliding counters along rods or grooves, used to perform mathematical functions. In addition to calculating the basic functions of addition, subtraction, multiplication and division, the abacus can calculate roots up to the cubic degree.

Detailed explanation-3: -The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool which has been used since ancient times. It was used in the ancient Near East, Europe, China, and Russia, millennia before the adoption of the Hindu-Arabic numeral system.

Detailed explanation-4: -Simple method comparable to the way young sighted children count and add by counting things one at a time, as in counting on fingers. Minimum number of rules must be learned in order to arrive at an answer to a mathematical problem. Speed in using the abacus is not lessened with this method.

Detailed explanation-5: -The rod on the right hand side of the unit rod would be used to represent the decimal place value digits. Before using the abacus, it should be made sure that the value on each rods are in the neutral position representing “0”.