Beats To Have Breakfast To

Influenza Quimia

Round 1 - Skrillex vs. BMTH Mashup

This thing

Dagg

Candy

Quince pé.

Son of a Bit

undo /'ʌn'du:/
Transitive verb - cancel, annul, or reverse an action or its effect.
Undo is a command in many computer programs. It erases the last change done to the document reverting it to an older state.
In most Windows applications, the Undo command is activated by pressing Ctrl+Z or Alt+Backspace. In virtually all Macintosh applications, the Undo command is activated by pressing Command-Z. 

Undo models can be categorized according to two criteria: linear vs non-linear, and single-user vs multi-user. Linear undo requires the user to revert the latest action before undoing earlier ones. With non-linear undo, the action to be reverted can be freely picked from the action history list.

Non-linear undo can be further subcategorized into direct selective undo vs. script interpretation undo vs. cascading undo. When multiple users can edit the same document simultaneously, a multi-user undo is needed. Global multi-user undo reverts the latest action made to the document, regardless of who performed the edit. Local multi-user undo only reverts actions done by the local user. Local multi-user undo usually requires a non-linear undo implementation.

fckUNDO

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