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From BLOG@CACM
#### Forced Labor at Bührle's Arms Factory

As has only recently become known, forced labor occurred at a former Bührle textile factory in Toggenburg, Switzerland. This and other Bührle companies played a...

From BLOG@CACM
#### The Mesm: Ukraine Beats Russia

The Mesm is considered the first stored program digital computer in Continental Europe.

From BLOG@CACM
#### Leonardo Torres Quevedo, a Brilliant but Forgotten Spanish Inventor

Although far ahead of his time, in the German- and English-speaking countries, Torres Quevedo has been largely forgotten.

From BLOG@CACM
#### Promoting Economic Development through Technical Innovation

A wealth of information about the history of technology and industry.

From BLOG@CACM
#### The Calculating Machine from the Concentration Camp

The story of Viennese engineer Curt Herzstark and the world's smallest mechanical calculating machine, the Curta.

From BLOG@CACM
#### Original Roman Pocket Calculators are Extremely Rare

As far as we know, only three or four original specimens of the Roman hand abacus have survived.

From BLOG@CACM
#### Patent Protection in Europe

Up to the second half of the 19th century —with the exception of the industrial power Great Britain—the protection of inventions was inadequate and strongly disputed...

From BLOG@CACM
#### Computers Were Originally Humans

Until the middle of the 20th century, computers were in fact humans who performed calculations.

From BLOG@CACM
#### How Does One Divide with Napier's Rods?

Napier's multiplication and division rods, deriving from the basic multiplication table, simplify calculations considerably.

From BLOG@CACM
#### How Does One Multiply with Napier's Rods?

Napier's multiplication and division rods, deriving from the basic multiplication table, simplify calculations considerably.

From BLOG@CACM
#### How Does One Calculate With A Circular Slide Rule?

The circular slide rule was widely used until the 1970s.

From BLOG@CACM
#### The Evolution of Computing Power in Switzerland

Milestones in the history of computing from the Swiss National Supercomputing Center, Lugano.

From BLOG@CACM
#### Soresini: A Very Rare Book on the History of Computing

The work is an extremely instructive, rich history of calculating technology. It also includes the analog world and automata, and is written in Italian.

From BLOG@CACM
#### Charles Babbage and the Loom

Babbage wanted to control his analytical engine, regarded as the ancestor of the modern-day computer, with punched cards.

From BLOG@CACM
#### The World's Most Magnificent Historical Calculating Machines

The design of today's electronic computers is usually not very appealing, in contrast to magnificent mechanical calculating machines from earlier times.

From BLOG@CACM
#### The World's Most Magnificent Historical Automatons

Automatons are ubiquitous. Some of the most magnificent works in the genre have survived in museums.

From BLOG@CACM
#### Konrad Zuse's Guestbook: a Treasure Trove

Computer scientist Konrad Zuse created the world's first programmable computer, the functional program-controlled Turing-complete Z3.

From BLOG@CACM
#### An Enigmatic Device from Denmark

Discovery of a very rare surveying instrument in Denmark.