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Pascal's Calculator
A mechanical calculator created by Blaise Pascal. This device was capable of correctly adding whole numbers that contained up to 6 digits. -
Arithmometer
The first digital calculator. This successful machine was capable of adding and subtracting two numbers along with the ability of computing long multiplication. It was the first commercially successful calculator. -
Burroughs Adding Machine
The demands of calculators kept growing at an ever more expedient rate. It was William Burroughs who designed a well crafted, reliable and available adding machine. This early 1890s model of The Burroughs Adding Machine lead the pace. -
Cash Register
The design of the cash register was sparked from a mechanical counter affixed to the propeller shaft of James Ritty's ship while on holiday in Europe. Using this concept Ritty and his brother developed the Cash Register, a device that accurately allowed for the sale of goods with accompanying printable records. This advancement helped stem embezzlement and secure accuracy during transactions. -
ENIAC
Electronic numerical interrogator and computer (ENIAC). Was developed by the University of Pennsylvania for use by the U.S. Army as a ballistic trajectory calculator. With its electronic innards and speeds far beyond that of human capability, the ENIAC was able to calculate complex trajectories that would have taken upwards to 60 hours by hand in just 20 seconds. -
EDVAC
The sister of ENIAC, Electronic discrete variable automatic computer (EDVAC) was capable of data manipulation on a greater standard. What sets the EDVAC apart from ENIAC is the use of stored programs to primary memory (on board memory) opposed to the grand series of punch cards needed to operate ENIAC.
