> [Apple] added Control next to Command, ensuring decades of confusion. When Apple introduced the Macintosh II, buyers had the option to get a keyboard with th

> [Apple] added Control next to Command, ensuring decades of confusion. When Apple introduced the Macintosh II, buyers had the option to get a keyboard with the Macintosh layout, or the larger Apple Extended Keyboard with a mixed Macintosh/IBM PC layout. The Apple Extended Keyboard was intended to be used with a IBM PC in a card slot. That is why it has a layout like a IBM Model M with two Control keys. It also has some sublegends that are PC-specific and otherwise didn't make sense on Macintosh. But this keyboard got popular, and influenced its successors.