IDC, a market research firm has revealed that for the first time, China became the world’s biggest PC market during the second quarter of this year.

IDC analyst Brian Enma said that PC shipments in China grew by 14% to 18.5 million units and in America fell 4.8% to 17.7 million units. China now accounts for an astounding 22% of the global market share, higher than America by 1%.

However it is predicted that the Chinese market will reach 72.4 million units by the end of this year or 1 million less than the U.S. But China is expected to hold the dominant position in 2012, with 76.6 million units.

Currently, HP and Dell still occupy the top two places worldwide with 18.1% and 12.9% market share by number of PC shipments, respectively. Lenovo, Acer and Asus round up the top 5 positions.