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KTC Logo. The Kentucky Transportation Center (or KTC) is a university transportation research center within the University of Kentucky College of Engineering. Founded in 1941 as the Division of Research of the Kentucky Department of Highways, KTC became part of the university in 1981. KTC is a hub of applied multidisciplinary transportation ...
A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.
Pascal's calculator (also known as the arithmetic machine or Pascaline) is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as the supervisor of taxes in Rouen . [ 2 ]
New York’s new toll for drivers entering the center of Manhattan debuted Sunday, meaning many people will pay $9 to access the busiest part of the Big Apple during peak hours.
The Casio FX-7000G is a calculator which is widely known as being the world's first graphing calculator available to the public. It was introduced to the public and later manufactured between 1985 and c. 1988. [2] Notable features are its ability to graph functions, [3] and that it is programmable.
The TI-68 was a scientific pocket/desktop calculator produced by Texas Instruments. [1] It was introduced in 1989 and was modified in 1991 to produce a less expensive and possibly more durable version. The adjacent picture is the later version. It was discontinued in 1997. A wealth of features made it a versatile calculator.
The TI-59 is an early programmable calculator, that was manufactured by Texas Instruments from 1977. It is the successor to the TI SR-52, quadrupling the number of "program steps" of storage, and adding "ROM Program Modules" (an insertable ROM chip, capable of holding 5000 program steps).
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