Calculator Gifts

As the name suggests, calculators are used for calculations. Calculations enable a user to perform arithmetic calculations fast. But before the calculator or calci was invented, another tool was used to make calculations.

This was the abacus, which was widely used in China. In the 17th century, Wilhelm Schickard invented the first automatic calculator. After two decades Blaise Pascal invented a calculation device, which was used for taxes in France. Early calculators resembled a typewriter. They were motor driven and consisted of multiple columns of keys for each digit. The first hand held calculator was introduced in 1971, weighing around one pound.

The famous calculator brands include Casio, Sharp, Hewlett-Packard (HP) and Texas Instruments (TI). As technology advanced, calculators were installed in computers, mobile phones, pagers and wristwatches.

A standard electronic calculator features a rectangle display screen, capable of showing 8 or 10 digits, a battery panel and a keypad with ten digits and mathematical signs of plus, minus, subtraction, division, equals, square root and percentage, decimal point, on/off and cancel button. Calculators come in several varieties including display calculators, scientific calculators, graphing calculators, financial calculators and printing calculators.

Allwondersgifts offer a huge selection of Calculator Gifts and gifts for all occasions.