International Business Machines Corporation (NYSE: IBM ) in its prime was the undisputed king of computing back in the 1960s when mainframes were dominant. As the 21st century arrived and the PC and internet revolutions occurred, IBM became a stalwartAnalyst’s Disclosure: I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this article myself, and it expresses my own opinions. I am not rece ...