The mouse makes it faster and easier to control your computer, especially in navigating and selecting. Basic Functions of a Computer Mouse Pointing – Move the cursor on the screen to select items.Clicking – Select or open files, folders, or programs. (Single-click or double-click)Right-clicking – Opens a shortcut menu for more options.Scrolling – The scroll wheel lets you move up or down a page easily.Dragging and Dropping – Click and hold to move items from one place to another.