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2-XL (2-XL Robot, 2XL Robot, 2-XL Toy) is an educational toy robot that was marketed from 1978–1981 [1] by the Mego Corporation, and from 1992–1995 by Tiger Electronics. 2-XL was the first "smart-toy" in that it exhibited rudimentary intelligence, memory, gameplay, and responsiveness.
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As the first electronic educational toy, [6] [7] the Little Professor is a common item on calculator collectors' lists. [8] In 1976, the Little Professor cost less than $20. More than 1 million units sold in 1977. [9]
The IBM Shoebox was a 1961 IBM computer that was able to perform mathematical functions and provide speech recognition. It was capable of recognizing 16 spoken words, including the digits from 0 through 9.
Among the first large print book publishers, the Clear Type Publishing Company published a collection of books in 36 point type, c. 1910. [8] The Ohio-based company specialized in large print, publishing books in 36pt and 24pt. [9] In 1914 Robert Irwin produced a series of textbooks in 36 point, for low-vision children in Cleveland, Ohio schools.
An HP Xpander. The HP Xpander (F1903A) aka "Endeavour" was to be Hewlett-Packard's newest graphing calculator in 2002, [1] but the project was cancelled in November 2001 months before it was scheduled to go into production. [2]
A mental calculator or human calculator is a person with a prodigious ability in some area of mental calculation (such as adding, subtracting, multiplying or dividing large numbers). In 2005, a group of researchers led by Michael W. O'Boyle, an American psychologist previously working in Australia and now at Texas Tech University , has used MRI ...
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