Microsoft co-founder Bill Gates resigns from Microsoft's board

Bill Gates was Microsoft's CEO until 2000, and has since reduced his involvement in the company he founded with Paul Allen in 1975. He stepped down from Microsoft in 2008 and served as chairman of the Board until 2014.

Gates also gave up his seat on the Berkshire Hathaway Council, a company led by billionaire Warren Buffett. Gates said he plans to devote more time to his foundation with wife Melinda. He will continue as technology advisor to Microsoft CEO Satya Nadella and other company leaders.