HomePNA is a type of technology that makes it possible to use one cable for both the internet and the telephone. It's a bit like having two different doors on your house, but they both open into the same room.
With homePNA, you can plug your phone and your computer into the same cable and use them both at the same time. This is really handy because you don't need to have two separate cables, which can be expensive and take up a lot of space.
The way homePNA works is a little bit like magic. Basically, the cable that plugs into your computer and your phone has two different "channels" inside of it. These channels work a little bit like different lanes on a highway.
When you want to use the internet, your computer sends its data down one of the channels, like a car driving down the highway. And when you want to use the phone, the phone sends its signal down the other channel, like another car driving down the other lane.
But even though the two signals are traveling down the same cable, they don't interfere with each other. It's a bit like having two different languages spoken in the same room - you can hear both, but you can still understand them separately.
Overall, homePNA is a really useful technology that helps make your life easier and more convenient.