Photo: IBM 1401 Data Processing System Reference Manual A24-1403-x. The IBM 1401 Data Processing System, a stored-program transistor-logic computer announced October 1959. At $2500 per month minimally ...

In French, when speaking in the past tense, one must constantly choose between the imparfait and the passé composé (cf. part I). In this exercise we will focus on cases where both tenses are used in a ...

Welcome. My main research area is "firms and development" -- applied microeconomic studies of firm behavior in developing countries. Much of my work focuses on the process of upgrading, understood ...

Relative pronouns link (cf. relier) a main clause with a subordinate (relative) one. The relative clause generally qualifies or explains a noun in the main clause that is its referent or antecedent.

Location: Gambia is located on the west coast of Africa between latitude 13 and 14 degrees north and 13 and 17 degrees west. The Gambia is a virtual enclave in the Republic of Senegal. The country is ...

The HP-150 This early Intel 8088-based non-IBM compatible MS-DOS computer was produced by Hewlett Packard in 1983. Distinguishing features: It was the first computer to use a 3.5" rigid diskette.

Miller, D.H. and J.E. Hansen, 2019: Why Fee and Dividend Will Reduce Emissions Faster Than Other Carbon Pricing Policy Options, OurEnergyLibrary, Response to the Request for Information from the ...

Jagdish Bhagwati is University Professor (Economics, Law, and International Affairs) at Columbia University and Director of the Raj Center on Indian Economic Policies. He was Senior Fellow for ...

The IBM 285 Tabulator Click each image to enlarge. IBM 285 with operator The IBM Type 285 Tabulator Photo: [4]. IBM 285 plugboard The IBM Type 285 Numeric Printing Tabulator, 1933, used in the Thomas ...

Page last updated July 23 2020 (added Fermín Travi's adaptation of Alan Lee's Python scripts for response-specific meta-d' analysis) The original version of this webpage is archived here. MATLAB files ...

Tubes showing... The IBM Type 603 Electronic Multiplier, 1946, the first electronic calculator ever placed in production [4]. A "box of 300 vacuum tubes" [74], all it did was multiply two numbers that ...

Columbia's Herman Hollerith pioneered punch card computation beginning in the late 1880s, when he chose punched cards as the medium for encoding and storing demographic data for the 1890 US Census, ...