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Function keys do not have specific tasks they perform across all programs. That is, different programs may define them for different tasks. One program may set one of them to go to full-screen mode, while another may use that same key to do a quick save. On window's machines, it's common that F8 will boot into safe mode when pressed during boot-up.

Long answer short, their functions is context specific based on which program is currently active.

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15y ago

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