The truth is that not all computers are personal, some are control devices.
You don't need the internet to use a computer. Some may disagree, but it is the truth. The internet is a great convenience, if you can get all your data resources on flash drives, DVDs, CDs, or your hard drive, your PC will work fine by itself, you just won't have internet. Yes that limits your resources and communication, but it's to show that a computer without the connection is still useful, just less. Back in the day we called it sneaker net, only required shoe rubber and a stack of floppies. Today both Nikes and flash drives are an upgrade.
Many folks only have painfully slow phone modems, they know what I am talking about. So wither it is the economics situation or the communications infrastructure limitation, computers can still be used. I wouldn't want to run a business on that but the computer will still compute. Many operations and activities we do on PCs do not require the internet. Some kind of access is needed though, many go to public libraries.
Here in the Linuxvlle chateau there are ah ha moments and hu mu mu mu aaah haaa ha ha ha! moments. Here is the situation. My powerful desktop PC is in the bedroom. But for the sake of the ladies in need I must be somewhat visible and accessible during the day. So I use a somewhat meager laptop on the dining room table. My graphics applications require a bit more firepower than my laptop can deliver. What to do?
VNC to the rescue. Virtual Network Computing is when one PC remotely accesses another PC to use all the abilities of that other computer. So at my meager laptop I can control my desktop PC as if I was sitting at the desktop. That laughter just came out of nowhere, I couldn't help myself.
I used an app called TightVNC, there is one for the server (my desktop) and one called xTightVNCviewer for the client (my laptop). I had to read several sources to get just how to set it up because folks have different equipment arrangments. They're description of things vary and to leave out details is human. I am told there are better VNC prgrams but that is a deeper investigation for the future.
So I am running around the house yelling "it's alive!"