The other neat thing about these quantum computers is that they're also storing a bit of information on every available degree of freedom.
I build quantum computers that store information on individual atoms and then massage the normal interactions between the atoms to make them compute.
The amount of information that can be stored by the ultimate laptop, 10 to the 31st bits, is much higher than the 10 to the 10th bits stored on current laptops.
All physical systems can be thought of as registering and processing information, and how one wishes to define computation will determine your view of what computation consists of.
Every physical system registers information, and just by evolving in time, by doing its thing, it changes that information, transforms that information, or, if you like, processes that information.
In order to figure out how to make atoms compute, you have to learn how to speak their language and to understand how they process information under normal circumstances.
What's happened with society is that we have created these devices, computers, which already can register and process huge amounts of information, which is a significant fraction of the amount of information that human beings themselves, as a species, can process.
There are considerable advantages to using many degrees of freedom to store information, stability and controllability being perhaps the most important.
Instead of having to be a member of the Royal Society to do science, the way you had to be in England in the 17th, 18th, centuries today pretty much anybody who wants to do it can, and the information that they need to do it is there.