From NY Times “Steven A. Ballmer, who took over as chief executive of Microsoft in 2000 from its co-founder, Bill Gates, announced Friday he would retire from the company within the next 12 months.”
Read NY Times article at http://www.nytimes.com/2013/08/24/technology/ballmer-announces-retirement-from-microsoft.html and Microsoft’s statement at http://www.microsoft.com/en-us/news/Press/2013/Aug13/08-23AnnouncementPR.aspx