Top five manufacturers of tablet computers in 2011, according to IHS iSuppli:
Apple Inc - maker of the iPad, 40.5 million shipped worldwide, 62 percent share
Samsung Electronics Co - maker of Galaxy line, 6.1 million, 9 percent.
Amazon.com Inc - maker of Kindle Fire, 3.9 million, 6 percent
Barnes & Noble - maker of Nook products, 3.3 million, 5 percent
AsusTek Computer Inc - maker of Transformer line, 2.1 million, 3 percent
Other, 9.4 million, 14 percent
