This report presents worldwide PC and worldwide desktop PC market volume per year for the period 2003 - 2014 and per quarter for the period 1Q 2008 - 4Q 2010. Also included are forecasts of worldwide desktop PC market volume and share by region and by CPU connector type. This report also provides comparison of worldwide motherboard and desktop PC market volume. This research finds that the worldwide PC market volume is forecasted to see continuous growth during the period 2010 - 2014. Meanwhile, the worldwide desktop PC market volume, which suffered a double-digit year-on-year decline in 2009, is projected to rebound slowly during the period 2010 - 2014. The worldwide motherboard/desktop PC shipment volume ratio is projected to remain above the level of 10% during the period 2010 - 2014.