Mechanical calculator

Introduction:- The computer is an essential tool of present day in society. Today computer gives us the information we need to extend our thinking power, with invention of new technology equipments our way of living has modify a lot of steps. We use computer in every field of life example- Business, research, Communication, Entertainment, banking, etc. The word computer comes from Greek word “compute” “which means to calculate”. Definition of computer:- A computer is an electronics machine…

1642: Mechanical calculator. The Pascaline is built by Blaise Pascal.

Gottfried Wilhelm von Leibniz's The Step Reckoner

Bid Live on Lot 1 in the 150th Specialty Auction»Office Antiques«»Science & Technology«»Mechanical Music«»Automata & Fine Toys« Auction from Auction Team Breker.

1945 Standard Resulta 7 Mechanical Calculator #Math

Odhner Arithmometer | National Museum of American History For almost a hundred years, Willgodt Theophil Odhner’s pinwheel calculator design dominated personal scientific calculating. In 1971, when Busicom, a Japanese manufacturer of Odhner pinwheel clones, saw that electronics would take over the calculator market, they hired a small American company to develop a chip set they could use in a new line of calculators. That small company produced the intel 4004, which is the ancestor of the…

Mechanical calculator

Vintage exposure calculator

Rheinmetall Superautomat

In 2009, English scientist Stephen Wolfram started a website--an "answer" engine--to redefine how information is gathered on its greatest-ever conduit. In this timeline, he catalogs "how our civilization has systematized knowledge, and gradually made it amenable to automation. This is about data and how it came to be the way it is in our world." Click to launch a 22,000 year tour through the history of data.

Photos capture the mechanical beauty of the mechanical calculator, a heavy device often about the size of a small computer that cost thousands in today’s dollars. They were indispensable tools used for the most complex business and engineering problems of the time.

curta schematic

They've changed a lot over the millennia, but computers have always been with us. From the humble abacus to the smartphone, there are a lot of neat (and oddly specific) machines through history.