New IDC research showed that China has just managed to outgrow the US to become the world's largest PC market. The US will hold on to the lead for all of 2011, but China this spring just pushed past the US to claim 22 percent of all PCs shipped, 18.5 million, to the 21 percent (17.7 million) going to Americans. In the long term, researches saw China getting 21.8 percent for all of 2012 where the US would slip to 19.6 percent.