Microsoft today announced record fourth-quarter revenue of $16.04 billion for the quarter ended June 30, 2010, a 22% increase from the same period of the prior year. Operating income, net income and diluted earnings per share for the quarter were $5.93 billion, $4.52 billion and $0.51 per share, which represented increases of 49%, 48% and 50%, respectively, when compared with the prior year period.

“This quarter’s record revenue reflects the breadth of our offerings and our continued product momentum,” said Peter Klein, chief financial officer. “The revenue growth, combined with our ongoing cost discipline, helped us achieve another quarter of margin expansion.”

Product momentum continued during the quarter with the successful launch of Office 2010 and strong performance from existing products including Windows 7, which has sold more than 175 million licenses to date, Windows Server, Xbox, and Bing, which achieved its 13th consecutive month of share gain.

For the fiscal year ended June 30, 2010, Microsoft reported record revenue of $62.48 billion, a 7% increase from the prior year. Operating income, net income and diluted earnings per share for the year were $24.10 billion, $18.76 billion and $2.10, which represented increases of 18%, 29% and 30%, respectively, when compared with the prior year.

Microsoft was able to stay ahead of Apple in revenue this quarter, which is a very good news for Steve Ballmer. It will be interesting so see what happens next quarter as Apple has projected revenue of $18 billion for Q3 2010.