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"Quantum Computing." It's one of those things that bring a sparkle to the eyes of propellerheads — and make the rest of us just scratch our heads.

But it's been a holy grail in the arcane world of supercomputers — and a Canadian firm claims it will be unveiling one on Tuesday. Nevermind that most engineers thought quantum computers were decades away.

D-Wave Systems, Inc., based near Vancouver, is the company that's been working on the project. Its machine is described as a computer that can perform 64,000 calculations at once.