The calculator is a computing machine. Its purpose is to do mathematics; basic calculators do the basic mathematical functions (addition, subtraction, division, and multiplication) while the more advanced ones, which are relatively new in the history...

The invention of the electronic pocket calculator in the 1960s ignited a world-wide microelectronics revolution. Hand-held calculating machines, portable and accurate, subsequently became valuable fixtures in science, engineering, business, and...

A calculator is generally defined as (1) any small handheld device that automatically performs arithmetic operations, certain mathematical functions, simple text editing, or elementary programming, or (2) a software program on a computer that simulates...

Throughout human history man has invented devices to make repetitive tasks, such as mathematical calculation, easier. For much of history, this was difficult. The advent of methods, which progressed to machines, to help with this dilemma made life much...

Within a few years of its invention in 1959, the integrated circuit (microchip)--tiny, complex electronic circuits on a single chip of silicon--had become reliable and inexpensive. The president of Texas Instruments, Patrick Haggerty, wanted to...

machine for automatically performing arithmetical operations and certain mathematical functions. Modern calculators are descendants of a digital arithmetic machine devised by Blaise Pascal in 1642. Later in the 17th century, Gottfried Wilhelm Leibniz...

Machine for performing arithmetic operations and certain mathematical functions automatically. Blaise Pascal devised a digital arithmetic machine in 1642. By the late 19th century, such machines had become smaller and easier to use, and desktop...

A calculator is a electronics device for performing mathematical calculations, distinguished from a computer generally by a limited problem domain and an interface optimized for interactive calculation rather than extensive programming. Calculators can...