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The most used key combination to undo the previous action the user has made.

The use of a key combination to easilly perform a command was first introduced by Macintosh, using the Q, Z, X, C and V buttons, in combination with the Command key, for the actions quit, undo, cut, copy and paste (in that order).

It was passed down to other Operating Systems, but with other operating systems using other keyboards the Ctrl (Control) key was used, since they didn't have the same control key as a Macintish keyboard does.


Also see "Inside Macintosh. Volume 1" Chapter I page 53, for the first ever mention and explanation of this command.
You see a person working on an image in Photoshop "Oh, crap, I made a mistake! Undo!" The person presses Ctrl+Z to unto his mistake
(NOTE: In Photoshop Ctrl+Z undoes all recent actions made with the tool selected, Ctrl+Alt+Z however undoes the last action only, yet can be pressed repeatedly to undo several previous actions)
by AARST July 30, 2004
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Jul 3 Word of the Day
Your a Grillbilly when your grill is the nicest thing about your house.
You know your a Grillbilly when your house is falling apart and you have a beautiful stainless steel grill.
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2
A desperate attempt to fix a borked situation.
A: You told her she was a dumb cow with a socially irresponsible haircut?
B: Yeah, I spent the rest of the weekend Ctrl+Z'ing that shit from seventeen directions.
by sv-1 August 29, 2007
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