There are many protocols that are used to help streamline the communication of all digital devices. For example, Wi$-$Fi uses the $$ protocol. This protocol ensures that devices enabled with Wi$-$Fi can connect to any Wi$-$Fi network.

$38$ kHz

$2\mathrm{.}4$GHz

$802\mathrm{.}11$

$802\mathrm{.}16$