I think it's the other way around- my wifi usually asks for ID & Password - unless it was saved @ first time set up.
Lan/network plugged in connection usually doesn't.
But it can depend on how your router/modem is set up..

Whenever you go look at the all in one- the box or one on display look for the various plug in places and ask if you can't find them.. all the internal stuff is in the monitor portion. The low cost one does only have a 32 G hard drive , but it might be all you need.. check for USB connections then you can store things on flash.thumb drives..

If you click the 360 images on the linked page and turn the view you will see all the connections available..

But for the most part a computer is a computer, the operating system might be a little bit different, look different , but they all do the same things..