To check if your operating system is up to date, you will Open Windows Update by clicking the Start button in the lower left corner. In the search box, type Update, and then, in the list of results, click either Windows Update or Check for updates.
Click the Check for updates button and then wait while Windows looks for the latest updates for your computer or if your system is up to date.
I believe this is an example of a Wireless Personal Area Network (WPAN). This type of network provides a low range wireless network that can interconnect devices near each other. So, Bluetooth devices such as a Bluetooth headset would be an example of WPAN.
