Control-C else, typically returning control to the user. Ctrl-C was one of a handful of keyboard sequences chosen by the program designers at Xerox PARC to control text editing, with Ctrl-Z (Undo), Ctrl-X (Cut), Ctrl-V (Paste), and Ctrl-P (Print). The first four letters are all located together at the left end of the bottom row of the standard QWERTY keyboard, and P towards the upper right. The equivalent key combination on Macintosh computers is Command-C. Control-C as an abort command was popularized by TOPS-20 and TOPS-10 and adopted by other systems including Unix. It was also adopted by Digital Equipment operating
Keyboard layout key. It is different in Norway than in Sweden and Finland, because of the placement of the letters different between Norwegian and Swedish/Finnish. It is supported by Microsoft Windows (Windows XP SP2 and later only). Microsoft Windows also has Swedish with Sami, Norwegian with Sami and Finnish with Sami layouts, which match the normal Swedish, Norwegian, or Finnish keyboards, but has additional Sami characters as AltGr-combinations. There are also keyboard layouts that do not resemble QWERTY very closely, if at all. These are designed to reduce finger movement and are claimed by some proponents to offer higher typing speed along