The term "duo" refers to the Core 2 Duo, a family of central processing units (CPUs) produced by Intel. Each Core 2 Duo features two processing cores incorporated into a single CPU.
Benefits
According to Overclockers.com, each of the Core 2 Duo's processor cores is capable of working on one software instruction called a "thread" at a time. This means that, as a whole, the CPU can complete two tasks simultaneously, twice the amount of a single-core processor.
Types
As of 2010, Intel's current lineup of Core 2 Duos includes both desktop and laptop CPUs for both PC and Macintosh computers. These come in both 45 and 65 nanometer versions, which means that the transistors that represent the data being processed are either 45 or 65 nanometers wide.
Origins
Intel released the first Core 2 Duo in July 2006. The Duo replaced the company's Pentium 4 processor and was most directly in competition with AMD's Athlon 64 processor line.
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