For Windows PCs, see Control key, Alt key and Windows key. For Macs, see Command key, Control key and Option key. Desktop Platform Modifier Keys Windows Control, Alt, Windows Linux Control ...

(ALT GRaph key) A key on many international computer keyboards that is located where the right Alt key is normally found (right of the spacebar). When pressed along with a keyboard key, it enables ...

(The Option key is sometimes known as Alt, by the way.) U.K. keyboards have to relegate the # to the number 3’s Option slot, because we need the Shift slot for our glorious British pound sign.