COMPUTER FUNDAMENTALS

Detailed explanation-1: -The rods were made of bone, ivory, wood, or metal. Napier’s bones became a very popular device for calculating in England and western Europe, because most people lacked these mathematical skills. The set is composed of ten bones, nine of which display the multiples of a given number between one and nine.

Detailed explanation-2: -Napier was a Scottish mathematician who lived from 1550 to 1617. He worked for more than twenty years to develop his theory and tables of what he called logarithms, a word he derived from two Greek roots: logos, meaning word, or study, or reasoning, or in Napier’s use, “reckoning”, and arithmos, meaning “number”.