Worldwide PC shipments has experienced double digit growth on a year-on-year basis, with shipments increasing 20.7% to 82.9 million in the second quarter of 2010, compared to an earlier expected 19.3% for the same period, according to a IT research and advisory firm Gartner.

HP maintained the top spot in worldwide PC shipments accounting for 17.4% of the total market share, even thought its growth rate was below the industry average as the company tried to protect margins in key regions.

Acer posted a growth rate of 13%, while Dell registered its second consecutive quarter of double-digit growth by securing professional PC market.

Dell gained the third spot with PC shipments market share representing 12.4% of total share, while Lenovo gained fourth spot with 10% share.

Mikako Kitagawa, principal analyst at Gartner, said; "End-user spending grew approximately 13% in the second quarter. Average selling prices (ASPs) continue to decline, but at a much slower rate compared with the last two years.

"Mini-notebook shipment growth slowed significantly in the second quarter of 2010. Mini-notebook shipment growth still exceeded growth rates of the overall mobile PC market, but mini-notebook growth slowed to the low 20% range compared with more than 70% in the last two quarters. This slowdown indicates that mini-notebooks are entering a mature growth stage."

Geographically, PC shipments in EMEA totaled 24 million units, an increase of 21.6% in Q2 2010, signaling continued strength of the EMEA PC market despite uncertain economic conditions.

In addition to economic conditions, the increase in unit price due to to component pricing and exchange rate pressures has affected the professional market.

However, Central Europe was the fastest-growing segment, driven by strong demand from Russia as the country recovers after the dramatic downturn in 2009, followed by Western Europe and the Middle East and Africa.

In Asia/Pacific, PC shipments surpassed 27.8 million units, up 25.4% from the second quarter of 2009. Markets in the region were off to a slow start in the quarter with news of economic uncertainties in Europe due to the credit crisis.

The impact was, however, limited and market sentiment improved, releasing pent-up demand for PCs from late May onward.