Promissory Notes Law & Legal Definition. Promissory Note: A promissory note is a written promise to pay a debt. An unconditional promise to pay on demand or at a fixed or determined future time a particular sum of money to or to the order of a specified person or to the bearer. promissory note should have several essential elements, including the amount of the loan, the date by which it is to be paid back, the interest rate, and a record of any collateral that is being used to secure the loan.
Definition of CALCULATOR for Kids. 1. : a person who calculates. 2. : a usually small electronic device for solving mathematical problems.earn More About CALCULATOR. Spanish Central: Spanish translation of calculator. Nglish: Translation of calculator for Spanish speakers. Britannica English: Translation of calculator for Arabic speakers. Britannica.com: Encyclopedia article about calculator.
It was in this context that the abacus and the counting tables were born. The abacus is the olden form of our calculator, its origins dates back to 2400 BC when the Babylonians used pebbles and dust abacus for their calculations. The abacus and the counting boards were the aids which were used to ease the calculations. In no way it can be compared with the calculators that we use today.