F1 and F2 keys control screen brightness, making the screen less or more bright. F3 shows all open windows using Expose view. F4 displays the Dashboard with tools like a calculator and weather app. F5 and F6 currently have no assigned functions. F7, F8, and F9 act as playback controls for rewinding, playing/pausing, and fast-forwarding media in apps like iTunes and QuickTime. F10 mutes sound, while F11 and F12 lower and raise volume respectively.

1. Mac Function Keys

2. Presented By
Mike Glennon

3. Brightness
F1
Less Bright
F2
More Bright

4. Expose
F3
Shows all open
windows

5. Dashboard
F4
Shows
dashboard tools
(calculator,
weather, etc.)

6. F5 F6
F5
No Assigned
F6
Functions

7. Playback Controls
F7
Rewind
F8
Play / Pause
F9
Fast-Forward
*Used with iTunes Quicktime

8. Volume
F10
Mute
F11
Softer
F12
Louder