Remote Apple Events are a way for AppleScripts and other applications running on remote Macs to interact and send “events” to your Mac. These Remote Apple Events are rarely used, but you may occasionally run into an application that takes advantage of them. In that case, this is where you will go to turn on that service.
Xgrid is a server application designed by Apple that will run on Mac OS X server to allow distributed computing across networked Macs. These connected Macs will then work in separately on "tasks" that will build out into a singular goal.
This is used in computing applications where a lot of processing power is needed (for example, in the scientific community). Xgrid can break off chunks of a larger processing project, pass them to an unused Mac to process, and then the Mac will send the processed data back to the server for inclusion in final results. This allows an application to tap into unused processing resources on a network.
You can read more about Xgrid on Apple’s website.
Internet Sharing is a very useful feature of Mac OS X that allows you to share your Mac’s internet connection with someone else via AirPort wireless or Ethernet. This is another feature of the Sharing preferences that we’ve covered in the past. Click below to read the past how tos:
- How to Share Your Wireless Internet Connection Via Ethernet
- How To Wirelessly Share an Internet Connection from a Mac
Bluetooth has become a great way to tether many of your peripheral devices to your Mac, but did you know that you can also send and retrieve files from your Mac using Bluetooth? This feature is very useful when you don’t have a network or internet connection to your Mac.
To send files to and retrieve files from your Mac with Bluetooth, turn on this service by checking the "On" box. Note that when you turn on the service, your Mac’s Bluetooth chip will be activated and put into discoverable mode.
With the default preferences, any device will be able to send you a file and ask for you to accept the transfer, but only paired devices will be able to browse files on your Mac. 
To send a file to another Mac via Bluetooth, click on the Bluetooth icon in the menu bar of your Mac. If this icon isn’t available, go to System Preferences > Bluetooth and check the box labeled “Show Bluetooth status in the menu bar.” Once there, click Send File. 
The Bluetooth File Exchange application will open and prompt you to select a file to send, then click Send. 
On the next dialog box, select the computer that you will be sending the file to, then click Send. The file will then begin transferring to the computer over Bluetooth. You will see a dialog containing the status of the transfer. 
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