Stories about writing books, code, and symphonies. (Sometimes all three at once.)
Microsoft operating income by division for the years 2010-2013. Unlike revenue, operating income varies dramatically from year to year. Microsoft Business has now dominated profits for three straight years, and if trends continue, Server and Tools will surpass Windows in profitability next year. Note also how irrelevant XBox and Windows Phone (E&D) are from a profit standpoint.