CmdrKeen

You can run DOOM on an Arduino, no problem.

https://github.com/daveruiz/doom-nano

I haven't seen this thing in action under normal conditions since I just looted the picture off Faceborg, but I imagine it probably shows a slideshow of ads.

If a literal toaster can do it, I'm sure this thing probably can as well.

Well, it doesn't look like a core dump

Bah humbug, just hook it up to the cloud, WCGW?

I honestly have no idea what they run on, I just know that they exist, and therefore there's a fairly good chance that they at least CAN run Linux.

Perhaps it runs on a Raspberry Pi?

No idea where it's from or what it usually looks like since I just nabbed this off of Facebook, but my guess is to display ads, or perhaps some slo-mo videos of fresh fruit being tossed in an appetizing manner in an attempt to trigger your Pavlovian reflex to buy some of those oranges.

Couldn't find any pictures of that particular setup operating under normal conditions, but here are some similar ones to give you an idea:

Using an actual hard drive for an embedded system like this would be a failure in and of itself.

Unless it literally has to store several hours' worth of HD video content, no reason the entire system couldn't fit on an SD card.

Or an Adafruit, perhaps?

Iron Maiden would like to have a word with you

I'm coming back, I will return
And I'll possess your daemons and make your CPU burn
I have ring 0, I have your cores
I have the power to make my evil take its course