If you have apple keyboard you can turn it on by pressing the power button. The power button is usually on the top right side of the keyboard.
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Open System Preferences
The steps below will show you how to turn on your Apple Keyboard. If your Apple Keyboard has already been turned on, you will see the light on top right corner of your keyboard.
Click on Keyboard
If you have an Apple keyboard, you can turn on your keyboard by clicking on the Keyboard icon in System Preferences. You may need to scroll down find it. If you don’t see a Keyboard icon, click on the View menu at the top of the System Preferences window and select it from there.
Apple Keyboard is a great way to type on your computer. To turn it on, you need to open System Preferences and check “Show keyboard and emoji viewers in menu bar.”
Enable Keyboard Shortcuts
Keyboard shortcuts are a great way to improve your productivity when using your Apple keyboard. By default, most keyboard shortcuts are turned off. In this article, we’ll show you how to turn them on.
Click on Keyboard
Assuming you are using a Mac computer, the first step is to click on the Keyboard icon in System Preferences.

In the Keyboard Preferences pane, there are a few options that can be toggled on and off. The one we want is “Enable Full Keyboard Access”.

With this setting enabled, you will be able to use all of the keyboard shortcuts once you’ve logged out and back in again.
Check “Use all F1, F2, etc. keys as standard function keys”
On your Mac, go to System Preferences > Keyboard, then select “Use all F1, F2, etc. keys as standard function keys.” With this option selected, you can perform the secondary function of the Function keys (such as adjusting screen brightness) by holding down the Fn key while pressing a Function key.
Use the Keyboard Viewer
If you want to see what characters are available on your Apple Keyboard, you can use the Keyboard Viewer. This is a virtual keyboard that shows you all the characters, symbols, and punctuation marks that are available on your keyboard. You can use the Keyboard Viewer to type characters that are not available on your physical keyboard.
If you don’t see a Keyboard icon in your menu bar, choose Edit > Keyboard from the main menu.
Click the icon to open the Keyboard Viewer. The onscreen keyboard shows all the keys on a standard keyboard, including modifier keys such as Shift, Option, and Command.
To use the Keyboard Viewer
1)Click on the Keyboard icon in the menu bar and select Show Keyboard Viewer from the drop-down menu to open it.
2)Hover your mouse pointer over a key on the keyboard to see its key name, or click a key to see its key name and modifier keys. For example, press and hold the Option key while you hover over another key to see what it would do if you pressed that key alone.
3)Click and hold a modifier key—for example, Shift, Option, Control or Command—to see what its secondary function is. For example, did you know that you can press and hold Shift to enable capitalization? Or that pressing and holding Command enables emoji entry?
4)Use the “All” modifier keys at the bottom of the keyboard (capslock, control & alt/option) to activate all available modifiers at once so that you can enter multiple characters in sequence without having to keep one finger on each of them individually.
Select “Show Keyboard Viewer”
In the Keyboard Viewer, you can select characters to type them in the current text input field. The onscreen keyboard provides additional options for configuring the keyboard.
1. Select the input field, then choose Edit > Emoji & Symbols.
2. Click the little gear icon at the bottom of the Character Viewer pane, then select Customize List….
3. In the Customize List dialog box, scroll down to find Keyboard Viewer in the list of services on the left, then check its box on the right.
4. Close System Preferences when done to return to your other apps.
Use the Keyboard Viewer to find keyboard shortcuts
The Keyboard Viewer shows you what characters are available in each keyboard layout, including modifier keys like Caps Lock, Shift, and Option. You can also use it to type special characters and symbols.
To use the Keyboard Viewer:
1. Open Keyboard in System Preferences and select the Keyboard tab.
2. Select “Show Keyboard & Character Viewers in menu bar.”
3. In the menu bar, select Show Keyboard Viewer.
The onscreen keyboard will display a character palette for the current keyboard layout. To see all available characters for a keyboard layout, click on the expand button in the lower-left corner of the palette.