Archives for July 2011

A Giant Leap for Quantum Computing

Today’s computers are the product of a digital revolution.  When we talk about computing, we talk about an environment of ones and zeroes that add up to all the programs, graphics and communications that we use. Often we tease, it’s just ones and zeroes but that small concept has enormous and far-reaching implications. In the early days of computers, there was a competition between analog and digital computing for a practical, supportable, calculating machine.  Actually, analog computers go back to ancient times and were used to calculate the position of stars and planets.  Probably the most familiar example of an analog computer is a slide rule. But as analog slide rules were replaced by digital calculators so were analog computers replaced by its digital competitor. Analog computers are powerful because they have multiple states and are not constrained by just ones and zeroes.  They … [Read more...]