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As we go through this course, you'll see that we mention wireless input devices such Apple's Magic Trackpad fairly often. These devices and others work through a wireless technology called Bluetooth. This is a short range wireless service that's good up to about 30 feet. So its fine for things like headphones and printers but not so good for transferring files to a computer far away. In this movie, we'll look at how to set up these devices, and we do that by going to System Preferences, we'll click on Bluetooth, and I have no Bluetooth devices that are currently working with this Mac, so I will click on Set Up New Device.
This launches Bluetooth Setup Assistant, and it looks for any devices that are within range. My trackpad happens to be one of them, so I click on Continue and it will attempt to pair with my trackpad. It tells me it's connected, so we're good to go. Now, in some cases, depending on the kind of device you have, up will pop a little number that you have to enter on that device. Do that and then the two will be paired. At this point, I could set up another device or I could simply quit.
Once devices have been paired, they can be disconnected, but they'll still remain. So, I click on the tools menu, choose disconnect, and it's no longer connected. I can reconnect it simply by clicking on Connect, and it tells me it's connected and again there's this little overlay indicating that it really is connected. You can choose the option to show Bluetooth in the menu bar, and what does that show us? Well it shows you that Bluetooth is on, whether your Mac is discoverable, because your Mac can operate as a Bluetooth device as well for doing something like file transfer in a short distance from one Mac to another within that 30 feet distance.
You can also turn Bluetooth off. I could send a file to another Mac if we have Bluetooth sharing turned on. You could browse a device so I can check out the contents of another Mac, again, if we have Bluetooth sharing turned on. I can see the devices that are attached, I could disconnect it here, I could also see the battery level, which can be really helpful. I could set up a new Bluetooth device, and I can open Bluetooth Preferences. We'll turn this off and we'll take a look at the Advanced button. This brings down a sheet that offers a number of options. So for example, if the Mac doesn't see that a keyboard is attached to it, it will automatically open Bluetooth Setup Assistant. Then you can pair your keyboard and then you're ready to go.
Same idea with a mouse or a trackpad, if doesn't see one of these pointing devices, it will automatically open up and offer to configure it for you. You could also allow Bluetooth devices to wake up your computer, and you can choose to reject incoming audio requests. So, if you have an audio device that wants to broadcast over Bluetooth and use your Mac and its speakers, you can tell it not to. At the very bottom, is this option for serial ports that devices use to connect to this computer, so what is this all about? Well this is kind of a legacy thing.
If you happen to have like an old Palm device, for example, and a few of us still do, it communicates over Bluetooth using these serial ports. You set up sort of virtual serial ports and that's how you make the connection to these pin devices. Again, most people are not going to have to do this. And you click on OK to dismiss that sheet. For our purposes, Bluetooth keyboards and particularly Apple's Magic Trackpad are the key Bluetooth devices that you're likely to work with, but you might work with headphones and speakers as well. Using the Bluetooth System Preference and Setup Assistant, you should be able to do this easily.
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