What is the function of “undo” command?

What is the function of “undo” command?

The function of "undo" command is to go back to the previous if in case you have done a mistake when working with any Office Program.

What is the function of “undo” command?

The “undo” command is very important and it exists in almost all applications that requires it. The “undo” command erases or deletes the last change done to the document reverting it to an older state or the state before the last action was done. In several more advanced applications like graphics processing, the “undo” command negates or cancels out the last command done to the file being edited.

The opposite of the “undo” command is the “redo” command which reverses the effect of the “undo” command or advances the buffer to a more current state. In most applications, the “undo” command is activated by pressing CTRL + Z on your keyboard. For the “redo” command, you press CTRL + Y.

Back in the 80s, multi-level undo commands were introduced allowing users to take back a series of actions, not just the most recent one.