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2700 BCE
the Abacus
This originated in Mesopotamian times around 2700-2300 BC and consisted of a table with columns ordered successively, which represented the order by magnitude of the number system sexagesimal they had. Throughout the history different versions of this invention were appearing, as much in China, Japan, Rome, India, Russia, Korea, etc. -
150 BCE
Anticitera mechanism
Coming from ancient Greece and invented in the years 150-100 BC, considered the first mechanical analogue computer. Other mechanical devices used to make some calculation included the planisphere, the astronomical clock of Su Song and Al-Jazari, the latter considered as the first programmable analog computer. -
slide rule
For its easy use to divide and multiply, dominated among those who needed to perform these operations logarithms and logarithmic tables -
Clock calculator
The first machine to add, a large apparatus full of levers, created by Wilhelm Schickard, in Germany. It was originally called the "calculating clock," and could add and subtract numbers up to six digits. -
Pascaline
Developed by Blaise Pascal in 1642 in France was an apparatus that could add, subtract, multiply and divide.
The launch of the Pascalina began the development of mechanical calculators in Europe and the world, a development that three centuries later would enable the creation of the microprocessor, first developed for a calculator in 1971. -
user interface
The American James L. Dalton made one of the biggest innovations in the "user interface" of the calculator, inserting buttons instead of levers. -
Short calculator
Appeared in Vienna, Austria, the Curta calculator, which although quite expensive, became a hit due to its portability. The mechanical calculator had a really compact design, which fit in one hand, and allowed to add, subtract, multiply and divide. -
IBM and Casio
IBM introduced a large transistor-based calculator, and in 1957 launched the first fully electronic commercial calculator called the IBM 608 At the same time, Casio in Japan, was launching its calculator model 14-A which is classified as the first relatively compact electric calculator (it was installed inside a desk). I say electrical and not electronic because it was based on a relay and not on a logic board. -
Sumlock Comptometer ANITA
Appeared the first electronic calculator 100% called Sumlock Comptometer ANITA, made by the British of Bell Punch. This calculator used vacuum tubes, cold cathode tubes and decatrons in its circuits, plus 12 "Nixie" tubes as a screen. -
portable calculators
The first portable calculators appeared in Japan that year, and were quickly sold around the world. Some of these equipment were the Sanyo ICC-0081, Canon Pocketronic and Sharp QT.8B. -
calculator on a chip
The first "calculator on a chip," the Mostek MK6010, followed by a Texas Instruments model that same year. From then on this became the model for calculators around the world. Although these first portable calculators were very expensive, with the passage of time the advances in electronics along with the technologies of screens (fluorescent, LED and LCD) would make in just a few years the prices would be accessible for many. -
scientific calculator
Texas Instruments launched the first scientific calculator, the SR-10, which cost US $ 150 and included a button for "π" (pi). In the following years logarithmic functions, trigonometry and others were added -
Financial calculators
Financial calculators have appeared, and since then they have continued their development to be emulated almost everywhere, allowing us today to take advantage of this invention in almost any electronic device, from a clock to a telephone.
