"Soft Rains" Prompt Response

The apocalypse come so Gainesville, pick a room or set of rooms in your home. Describe what electronic processes would continue to occur regardless of human presence. Be very thorough and specific. How long would these processes continue without intervention by humans? Bradbury writes science fiction. Is this piece plausible within our current world situation? Why or why not?

I'll just pick my entire apartment, as it is very small. It includes a kitchen, bathroom, living area and bedroom. What electronics would keep on going if no one ever came back to University Heights? 

One main question to ask is how long is the grid going to stay up? So long as the power is flowing, the modem and wireless router would keep blinking, my Imac would stay in sleep mode, the smoke detector would continue to blink, the red light on my PS3 would keep steady, and any lights that had been on would stay on.

After the grid goes down, anything with batteries would stay alive for a few weeks, slowly burning out. The smoke detector, my old laptop, my cell phone, any battery powered game controllers and remotes would still function for a while, but without human input they would do nothing. The power light would link rapidly on my laptop before it quit. After a while, the smoke detector would cry out for a battery replacement, then die.  

It would only take a couple of weeks before literally no electronic object in my apartment would be functioning; however, the non-rechargaeble batteries in the remotes would last months if not years before they corroded and destroyed their hosts. 

I think Bradbury's future world is not a reality at this time. Maybe someday, but until we discover and actually use more natural energy sources (for example, anything solar powered would last a lot longer than objects hooked to the grid only) the end of humanity would also spell the end of the electronic world. While sophisticated computers like the one in Bradbury's house might be speaking to my elderly grandkids someday, I can only hope I live long enough to witness such a self-sustaining system as the one in Bradbury's story. But simply because it is not a reality does not mean that the tale has nothing real to say; our insignificance in the universe at large is always a relevant topic. Electronics wouldn't care anymore than the soft rains if "mankind perished utterly," but without humans, computers, cell phones and the like simply become bizarre relics of a lost civilization. The life they would live alone would be brief and meaningless.