Afraid I don't follow. I've always considered the channeling of electricity through a large number of microcircuits, where "on" equals 1 and "off" equals 2, to be plain old physics, not quantum physics. Same with the concentration of a narrow spectrum of light across a beam, in terms of the barcode scanner. Nothing really quantum about the base technology.
I know work continues in the so-called "quantum computer" space, but my understanding is that it's really just the addition of more states than simply "on" and "off", amounting to "on and on", "on and off", "off and off", "off and on," and so forth up the multidimensional tree. There's also a theory that the human brain is actually an electrochemical "quantum" computer which processes data across multiple dimensions, else the candlepower of it can't be fully explained.
I think the current quantum theory is evolving within a simultaneously too-rigid and too-fantastical supposition, and that actual reality is simpler. Multiple dimensions that the human mind perceives as three, for example. Seems easier to digest to me.