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A pinwheel calculator is a class of mechanical calculator described as early as 1685, and popular in the 19th and 20th century, calculating via wheels whose number of teeth were adjustable. These wheels, also called pinwheels, could be set by using a side lever which could expose anywhere from 0 to 9 teeth, and therefore when coupled to a ...
Other applications of pinwheel scheduling include scheduling maintenance sessions for a collection of objects (such as oil changes for automobiles), the arrangement of repeated symbols on the print chains of line printers, [3] computer processing of multimedia data, [6] and contention resolution in real-time wireless computer networks.
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The Facit calculator, and one similar to it, are basically pinwheel machines, but the array of pinwheels moves sidewise, instead of the carriage. The pinwheels are biquinary; digits 1 through 4 cause the corresponding number of sliding pins to extend from the surface; digits 5 through 9 also extend a five-tooth sector as well as the same pins ...
Trailing twelve months (TTM) is a measurement of a company's financial performance (income and expenses) used in finance.It is measured by using the income statements from a company's reports (such as interim, quarterly or annual reports), to calculate the income for the twelve-month period immediately prior to the date of the report.
Apr. 4—April is National Child Abuse Prevention Month — a time when child advocacy groups nationwide bring attention to the importance of putting children and families first.
A chained volume series is a series of economic data (such as GDP, GNP or similar kinds of data) from successive years, put in real (or constant, i.e. inflation- and deflation-adjusted) terms by computing the aggregate value of the measure (e.g. GDP or GNP) for each year using the prices of the preceding year, and then 'chain linking' the data together to obtain a time-series of figures from ...
Pinwheel (toy), a spinning children's toy; Pinwheel (cryptography), a device for producing a short pseudo-random sequence of bits; Pinwheel (shogi), an opening in the game shogi or Japanese chess; Pinwheel (TV channel), a channel which would later turn into Nickelodeon; Pinwheel, a children's show on Nickelodeon that ran from 1977 to 1984