Media tablets, primarily the iPad, are beginning to have a serious impact on the sale of regular desktop and notebook computers, says research firm IHS iSuppli. The firm reports that global PC shipments amounted to 81.3 million units in Q1 2011, a decline of 0.3 percent from the 81.6 million tallied in Q1 2010. Three out of the top five PC makers recorded their own shipment declines, with the worst hit being the third-ranked Acer.
