Worldwide sales of personal computers dropped for a fifth consecutive quarter in the April-June period, the longest decline in the PC market's history, Gartner's survey showed Lenovo taking a 16.7 percent global market share with shipments of 12.67 million units, just ahead of HP's 12.4 million and 16.3 percent share. Both firms saw sales declines, but Lenovo's was limited to 0.6 percent while HP sales fell 4.8 percent. Dell was the number three vendor, with sales of 8.9 million and a market share of 11.8 percent.Number four vendor Acer experienced a drop of 35 percent, and fifth-place Asus showed a 20.5 percent drop