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It was capable of addition, subtraction, multiplication and division. In 1967 there was a HEXADAT model, [6] which allowed 4-function math to be applied to hexadecimal numbers for use in programming. The first use of a stylus in an electronic computing device was the Stylator, demonstrated by Tom Dimond in 1957. [7] [8]
A stylus (pl.: styli or styluses [1]) is a writing utensil or a small tool for some other form of marking or shaping, for example, in pottery. It can also be a computer accessory that is used to assist in navigating or providing more precision when using touchscreens .
CNT tips are also used in tapping-mode Scanning Force Microscopy (SFM), which is a technique where a tip taps a surface by a cantilever driven near resonant frequency of the cantilever. The CNT probe tips fabricated using CVD technique can be used for imaging of biological macromolecules, [86] semiconductor [35] and chemical structure. [32]
The quill replaced the reed pen across Europe by the Early Middle Ages and remained the main writing tool of the West for nearly a thousand years until the 17th century. . Quills are fashioned by cutting a nib into the end of a feather obtained from a fairly large bird, such as a goose, traditionally from its left
Treatment Improvement Protocols (TIPs) are a series of best-practice manuals for the treatment of substance use and other related disorders.The TIP series is published by the Substance Abuse and Mental Health Services Administration (SAMHSA), an operational division of the U.S. Department of Health and Human Services.