The IBM 609 Calculator Photo: The IBM 609 Calculator. Announced 26 April 1960 and withdrawn 1 July 1968. This is a faster version of the solid-state 608, and the last of IBM's line of punched-card ...

The task force proposed this study early last year, and it was approved by the University and supported by University ...

A Board of Transportation map from 1929 shows the proposed route south from Roosevelt Ave, the superimposed red circle. The constructed First System is in alternating black and white, and the ...

Chambers St closed platforms Passenger service: August 1913 - May 1931. Existing abandoned portions: 2 platforms and trace of another (on tracks in service). Touring: J M Z trains to Chambers St. Two ...

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Chapter 5 Structure and preparation of Alkenes. Elimination Reactions Sections 5.1-5.4: html / PowerPoint / PDF 5.1 ALKENE NOMENCLATURE 5.2 STRUCTURE AND BONDING IN ALKENES 5.3 ISOMERISM IN ALKENES ...

A Public Service Commission photo from 1909 shows the east platform with non-tiled steel columns. The view is looking south, showing the wall between the center tracks. The stepped structure at the ...

Above, a detail of a 1903 map from the Board of Rapid Transit Railroad Commissioners still shows the route as 2 and 3 tracks. Below, a profile from the same original map shows how close to the street ...

With its 17 schools and four affiliate schools spread over four campuses located in and around New York City, the University understands its regional and global impact. Indeed, as the philosopher ...

Timothy Mitchell is a political theorist and historian. His areas of research include the place of colonialism in the making of modernity, the material and technical politics of the Middle East, and ...

The IBM 1401 Data Processing System, a stored-program transistor-logic computer announced October 1959. At $2500 per month minimally configured, this was IBM's first affordable general-purpose ...

From The Quarterly, Columbia University School of Mines, Vol.X No.16 (Apr 1889), pp.238-255. In this article the author, Columbia graduate (Mines 1879) Herman Hollerith, describes the devices and ...