Surviving Technological Sea Changes

MJ Perry on the survival of IBM during a hundred years of technological changes.  Some great data.   It is quite remarkable.  From mechanical business machines reading and sorting punched cards to personal computers to the advent of using quantum physics to do generalized data manipulation on a global Internet.  Some of the commenters suggest that no company could survive that long without manipulating the market to create a monopoly.  But where is the monopoly?  Google and Apple are doing quite well today.