Do you know 58,675,985 x 73,892,619? The calculator can calculate it for you.
- Calculators are used to calculate numerals and equations, typically in mathematics or business.
- The first mechanical calculator was invented by Blaise Pascal, a French mathematician, when he was 19 in 1642, to help is father calculate mathematic sums.
- Calculators were originally gear driven wheels, but now they use a chip, typically a microchip, and some kind of energy source.
- The first handheld calculator was invented by Texas Instruments, an American company, in 1967, and were further developed in the early 1970s.
- School students are common users of calculators, using them to calculate difficult sums, although some say children are too dependent on the devices.
- Calculators are often powered with chemical or battery energy, solar energy or electrical energy.
- Scientific calculators are devices that are able to deal with more complicated calculations, having more mathematical symbols, and can hold more than one number at a time, compared to the original calculator.
- Abacuses were early types of calculators, aiding the person who was calculating, but in Western countries, electronic calculators are nearly always used.
- The display of numbers on a calculator are visible on an LCD (liquid-crystal display) screen, and are shown on the screen when a button is pressed.
- Types of calculators range from small pocket ones to large heavy duty ones that can print the calculations.
Bibliography:
Calculator, 2013, Encylcopedia.com, < http://www.encyclopedia.com/topic/calculator.aspx#1>
Calculator, 2013, Wikipedia, < http://en.wikipedia.org/wiki/Calculator>
