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A mark of punctuation ( \ ) introduced in 1960 as a deliberate way to convert two ALGOL symbols ("up" and "down" carets) into ASCII by using the new backslash and its traditional opposite number, the virgule or slant ( / ): \/ - or - /\ for example. The backslash went on to find use in early UNIX programs and today is party of a typical QWERTY keyboard, usually to the right of the bracket (and braces) keys. Other terms for the mark include slosh, reverse virgule, and reverse slash. .
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