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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.
ANSI QWERTY keyboard layout (US) Remington 2 typewriter keyboard, 1878 A laptop computer keyboard using the QWERTY layout. QWERTY (/ ˈ k w ɜːr t i / KWUR-tee) is a keyboard layout for Latin-script alphabets.