HP has maintained its lead as the largest shipper of computers in the world with the fight for second going back and forth between Dell and Acer. In July of 2010, Acer ousted Dell from the second place spot in the global computer shipment rankings leaving Dell in third place.

The latest Q2 2010 results for the computer market globally are in from iSuppli and Dell has been able to regain second place from Acer. Dell had 12.8% of the global PC market for the quarter shipping 10.5 million computers. Dell did see shipments decline compared to Q1 by 1.2%. That decline in shipments for Dell wasn't nearly as large as Acer's 6.2% decline. Acer shipped 10.2 million PCs in Q2 compared to 10.9 million in Q1.

First place HP shipped roughly 14.9 million computers for the quarter with 18.1% of the market, down from 19.6% of the market in Q1. Interestingly HP saw the most decline in growth compared to Q1 numbers with 6.3% decline from Q1 to Q2.

The only computer maker in the top five global shippers to post sequential growth from Q1 2010 to Q2 2010 was Lenovo with a whopping 18.6% growth. Lenovo shipped 8.3 million computers in Q2 for 10.1% of the market to grab fourth place on the list. Fifth place on the list went to Toshiba with 4.4 million units shipped for 5.4% of the market.

The main reason for Acer's slip was that mobile shipments decreased overall for the quarter and other makers like Dell and HP made up the decline in mobile shipments with desktop and server computers. Acer isn’t strong in desktop or server sales.

“With its product line heavily focused on mobile PCs, Acer’s sequential decline in notebook shipments impacted its position at the total PC level more than its competitors, which were able to draw on the upswing in desktop shipments to bolster their total shipments,” said Matthew Wilkins, principal analyst, compute platforms research, for iSuppli. 

In related news, ASUS recently stated that it is lowering its forecast for netbooks due to the popularity of Apple's iPad. Acer's meteoric rise can be partly attributed to its heavy reliance on netbook computers, so the iPad could be having the same effect on its netbook lineup.