undo - significado y definición. Qué es undo
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Qué (quién) es undo - definición

COMPUTER COMMAND
Redo; Undid; Undoable; ⎌; Undo command; Multiple undo; Cmd-Z; Command-Z; Cmd-Shift-Z; Command-Shift-Z

Undo         
  • [[Dmytro Levytsky]], party leader from 1925 to 1935
UKRAINIAN POLITICAL PARTY IN THE SECOND POLISH REPUBLIC
UNDO
·vt To reverse, as what has been done; to Annul; to bring to naught.
II. Undo ·vt To bring to poverty; to Impoverish; to ruin, as in reputation, morals, hopes, or the like; as, many are undone by unavoidable losses, but more undo themselves by vices and dissipation, or by indolence.
III. Undo ·vt To Loose; to Open; to take to piece; to Unfasten; to Untie; hence, to unravel; to Solve; as, to undo a knot; to undo a puzzling question; to undo a riddle.
undo         
  • [[Dmytro Levytsky]], party leader from 1925 to 1935
UKRAINIAN POLITICAL PARTY IN THE SECOND POLISH REPUBLIC
UNDO
(undoes, undoing, undid, undone)
1.
If you undo something that is closed, tied, or held together, or if you undo the thing holding it, you loosen or remove the thing holding it.
I managed secretly to undo a corner of the parcel...
Some clamps that had held the device together came undone.
VERB: V n, V-ed
2.
To undo something that has been done means to reverse its effect.
She knew it would be difficult to undo the damage that had been done...
If Michael won, he would undo everything I have fought for.
VERB: V n, V n
3.
see also undoing
, undone
undo         
  • [[Dmytro Levytsky]], party leader from 1925 to 1935
UKRAINIAN POLITICAL PARTY IN THE SECOND POLISH REPUBLIC
UNDO
v. a.
1.
Annul, invalidate, reverse, neutralize, nullify, frustrate, bring to naught.
2.
Loose, unfasten, untie, disengage, open, unfold, disentangle, unravel.
3.
Ruin, destroy.
4.
Impoverish, bring to poverty.

Wikipedia

Undo

Undo is an interaction technique which is implemented in many computer programs. It erases the last change done to the document, reverting it to an older state. In some more advanced programs, such as graphic processing, undo will negate the last command done to the file being edited. With the possibility of undo, users can explore and work without fear of making mistakes, because they can easily be undone.

The expectations for undo are easy to understand: to have a predictable functionality, and to include all "undoable" commands. Usually undo is available until the user undoes all executed operations. But there are some actions which are not stored in the undo list, and thus they cannot be undone. For example, save file is not undoable, but is queued in the list to show that it was executed. Another action which is usually not stored, and thus not undoable, is scrolling or selection.

The opposite of undo is redo. The redo command reverses the undo or advances the buffer to a more recent state.

The common components of undo functionality are the commands which were executed of the user, the history buffer(s) which stores the completed actions, the undo/redo manager for controlling the history buffer, and the user interface for interacting with the user.

In most Microsoft Windows applications, the keyboard shortcut for the undo command is Ctrl+Z or Alt+Backspace, and the shortcut for redo is Ctrl+Y or Ctrl+Shift+Z.

In most Apple Macintosh applications, the shortcut for the undo command is Command-Z, and the shortcut for redo is Command-Shift-Z.

On all platforms, the undo/redo functions can also be accessed via the Edit menu.

Ejemplos de uso de undo
1. The authority‘s proposal would undo that agreement.
2. It is no more possible to undo globalization than it was possible, in the 1'th century, to undo the Industrial Revolution.
3. Rod Smith, accused him of failing to undo injustice.
4. This will undo current practice of granting of permanent licence.
5. Mr Brown won‘t easily undo the damage inflicted by Blair.