In Windows, pressing the "Alt" key along with the "Tab" key (Alt+Tab) allows you to switch between open programs or applications. This keyboard shortcut displays a list of open windows, and you can cycle through them by continuing to press the "Tab" key while holding down the "Alt" key, and then release both keys to switch to the selected program.

Data that is copied from an application is stored in the clipboard. The clipboard is a temporary storage area in a computer's memory that holds the data that has been cut or copied, allowing users to paste the data into another location or application. This functionality is commonly used for tasks such as copying text, images, or files from one place and pasting them into another.