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Larry Tesler created the concept of cut, copy, paste, and undo for human-computer interaction while working at Xerox PARC to control text editing.During the development of the Macintosh it was decided that the cut, paste, copy and undo would be used frequently and assigned them to the ⌘-Z (Undo), ⌘-X (Cut), ⌘-C (Copy), and ⌘-V (Paste).
The earliest editors (designed for teleprinter terminals) provided keyboard commands to delineate a contiguous region of text, then delete or move it. Since moving a region of text requires first removing it from its initial location and then inserting it into its new location, various schemes had to be invented to allow for this multi-step process to be specified by the user.
The delete control character (also called DEL or rubout) is the last character in the ASCII repertoire, with the code 127. [1] It is supposed to do nothing and was designed to erase incorrect characters on paper tape .
Applications communicate through the clipboard by providing either serialized representations of an object, or a promise (for larger objects). [6] In some circumstances, the transfer of certain common data formats may be achieved opaquely through the use of an abstract factory; for example, Mac OS X uses a class called NSImage to provide access to image data stored on the clipboard, though the ...
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Versions of the Lorem ipsum text have been used in typesetting at least since the 1960s, when it was popularized by advertisements for Letraset transfer sheets. [1] Lorem ipsum was introduced to the digital world in the mid-1980s, when Aldus employed it in graphic and word-processing templates for its desktop publishing program PageMaker .
By Makini Brice and Juliette Jabkhiro. PARIS (Reuters) -The Cour de Cassation, France's highest court, upheld on Wednesday former President Nicolas Sarkozy's conviction for corruption and ...
Stargazers should prepare to lose sleep on Tuesday, Aug. 12, as two celestial sights unfold. The first event will be visible before sunrise and will feature the two brightest planets in the sky ...