STAMFORD, CT – Global PC shipments reached 71.9 million units, a 16% increase year-over-year, a top research firm said.

H-P and Dell maintained their positions atop the PC sales leaderboard in the second quarter, according to Gartner. H-P shipped more than 13 million systems, up 17.1%. Dell followed with sales of more than 11.2 million systems, up 21.9%.

By market share, H-P had an 18.1% share, Dell 15.6%, Acer 9.4%, Lenovo 7.8%, and Toshiba 4.4%

In the US, PC shipments reached 16.5 million units, a 4.2% increase year-over-year. No. 1 Dell’s sales rose 11.9% to 5.25 million units, while H-P’s rose 5.6% to 4.17 million units.

Apple eased past Acer for third as sales rose more than 38% to nearly 1.4 million units. Acer’s sales declined more than 20%, or roughly 65,000 units, despite its merger with Gateway. Fifth place Toshiba saw PC sales rise 2.8% to 907,000 units.

Dell’s market share for the quarter was 31.9%, followed by H-P at 25.2%, Apple at 8.5%, Acer, and Toshiba at 5.5%.

"Mobile PCs continued to lead unit growth across all regions, as the average selling price of mobile PCs declined sharply relative to desk-based PC ASPs," a Gartner analyst said. "Economic uncertainties have hit PC revenues, resulting in steep ASP declines, especially in markets such as the US and the Europe, Middle East, and Africa region."