Apple iMac (21.5-inch and 27-inch, Mid 2011) - Manual (Page 29)

29 Chapter 2 Life with Your iMac
Pairing Your Apple Wireless Keyboard with Your iMac
If your Apple Wireless Keyboard isn’t paired with your iMac, the indicator light begins to
blink, indicating your keyboard is in discovery mode and ready to pair with your iMac.
To pair your wireless keyboard:
1 Press the power button (®) to turn on your wireless keyboard.
2 Choose Apple () > System Preferences, and then click Keyboard.
3 Click “Set Up Bluetooth Keyboard…” in the lower-right corner.
4 Select your wireless keyboard, and then follow the onscreen instructions.
If you don’t pair your keyboard with your iMac within 3 minutes, the indicator light
and keyboard turn off to preserve battery life. Press the power button (®) to turn your
keyboard on again, allowing you to pair it with your iMac. Once you successfully pair
your keyboard with your iMac, the indicator light glows steadily for 3 seconds, and then
turns off.
Using Your Apple Wireless Keyboard
Customize your Apple Wireless Keyboard using Keyboard preferences. You can change
the modifier keys, assign keyboard shortcuts to menu commands in a Mac OS X
application or in the Finder, and more.
To customize your keyboard:
1 Choose Apple () > System Preferences.
2 Click Keyboard, and then click Keyboard or Keyboard Shortcuts.