FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Quick Access Toolbar lies next to the Microsoft Office Button. It is a customizable toolbar that comes with a set of independent commands. It gives you quick access to commonly used commands such as Save, Undo, Redo, etc.

Detailed explanation-2: -To undo an action press Ctrl+Z. If you prefer your mouse, click Undo on the Quick Access Toolbar. You can press Undo (or CTRL+Z) repeatedly if you want to undo multiple steps. Note: For more information about the Quick Access Toolbar, see Customize the Quick Access Toolbar.

Detailed explanation-3: -To undo an action, press Ctrl + Z. To redo an undone action, press Ctrl + Y.

Detailed explanation-4: -The Quick Access Toolbar provides access to frequently used commands, and the option to customize the toolbar with the commands that you use most often. By default, the New, Open, Save, Quick Print, Run, Cut, Copy, Paste, Undo, and Redo buttons appear on the Quick Access Toolbar, as shown in the following image.