ibm World's major computer manufacturers have been battling it out to build the most powerful computer on Earth. Any guesses for the world's fastest computer? Well, the Big Blue virtuosos have made it again. It has smashed all the existing records ending up 20 times more powerful than the former. With speeds of up to 1.105 petaflops - 1.105 quadrillion calculations per second - IBM's Roadrunner is the world's fastest electronic brain. Roadrunner topped the  biannual Top500 list, released Tuesday at the 2009 International Supercomputing Conference. IBM made two new entries in the top 10 list - the BlueGene/P called Jugene and the Juropa.
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