Sure, there are fewer homes with desktop computers, but that does not mean there are no computers in our home. In fact, I think we live in an age where we have TOO MANY computers. Think about it in teh 1990s even a affluent home had one computer in it, but today a working class home has six unconnected computers. At night we have a few laptops, a handful of tablets, a smattering of smartphones, a game console or two, a few smart TVs, a kitchen appliances with a CPUs in them. But they don't work in concert. They don't leverage each other power!!!
The forgotten bit about PS3 was that was supposed to be part of "Sony's" vision. The PS3's "Cell" was supposed to become ubiquitous. The dream was that all the 'computing;' devices in the home could combine to leverage all of their processing power to do things. And, that will in all likelihood come to pass. In the future we will have these devices, but we will likely distribute their power better. In the future ist might be that instead of teh oven, referegator, tv, and sound system in a home having their own processor they will "request" processing from the computers in our home or in our pockets.
Some might say, "Uh who cares how does this matter?" Well, what sounds more efficient for electricity in an average home having 20 increasingly sophisticated computers that don't talk, or 6 computers that do? Okay, other than saving electricty what does having all teh computing power working do for us?
Well, imagine we put a turkey in the oven. An oven that ditches the expense of its 'dinky cpu' for sensors is an oven where no matter what you put in the oven they oven knows how to cook. Such an oven will stop not based on time; but on temprature of the food, humidity in the oven, light spectrum bouncing off the surface of the food, and spectra analysis of the fat/volitile chemical being burned in the roasting pan, etc. The sensor described need A LOT of computing power, but why put that in the oven? Your robot vacuum doesn't need a big cpu to know if the carpet is clean, but it sure could use distributed computing power that it can feed it's own sensory inputs into to see your home, analyze dust content in teh air and sense when dirt is below thresholds that require cleaning the floors. Likewise, your smoke detector doesn't need a cpu, but it could use help determining what if a steak cooking in the kitchen or grandma set herself on fire, right? In that case of a steak that arms need not ring as loudly; but if grandma is on fire it tell you "nanna is ablaze, again'.
That future of the "home pc" is very thrilling. There will be a level of home automation and home sensing that will actually be helpful, but ist will be done efficiently with less computers that share more effort but only when needed.
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