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The command "F11" refers to a function key on a computer keyboard. Function keys are special keys that perform specific tasks when pressed.
In most cases, pressing the F11 key activates the full-screen mode in various applications and web browsers. This means that the window or program you are currently using will expand to cover the entire screen, hiding the menu bars, taskbars, and other unnecessary elements. This can provide a more immersive and focused experience, especially when viewing media content or working on tasks that require maximum screen space.
Pressing F11 again will usually exit the full-screen mode and restore the window or program to its original size and layout.
It's important to note that the exact function of the F11 key may vary depending on the specific application or operating system you are using. Therefore, it's always a good idea to consult the documentation or help section of the program you are using to find out the specific function of the F11 key in that context.