The history of computing spans thousands of years - from the primitive notched bones found in Africa, to the invention of abacus in 2400 BC, to Charles Babbage's Difference Engine in 1883, to the rise of the popularity of Personal Computers (PCs) in the 1970s. For the most part, this timeline is marked by devices that bear little or no resemblance to present-day machines both in form and capabilities.We've had many posts on Neatorama about the newest and greatest in computers and technology. But for this...