> Are you just assuming these are laptops with a battery?
Did you even read the article? It's a laptop. That would be the safe assumption, anyway. Laptops far out-stripped desktop sales years ago, they're what most work happens on now.
> And saying that computers are communicating by speakers and microphones over long distances (i.e. > a few inches) is patently ridiculous.
It's not. I've done it myself. Go grab a couple laptops and some PSK31 software and you can do it, too.
Did you even read the article? It's a laptop. That would be the safe assumption, anyway. Laptops far out-stripped desktop sales years ago, they're what most work happens on now.
> And saying that computers are communicating by speakers and microphones over long distances (i.e. > a few inches) is patently ridiculous.
It's not. I've done it myself. Go grab a couple laptops and some PSK31 software and you can do it, too.