For those of you who thought mainframes went the way of the punch card, well, you're not far off. Mainframe sales made up less than a quarter of all server sales last year, according to IDC.
But IBM keeps trucking along. In fact, Big Blue dominates the mainframe market with about a 90% share, bringing in $11 billion in sales in 2009.
How IBM grew from annual sales of $950,920 into a global Goliath. More
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