Intel's business model depends on making large investments in the latest technologies in chipmaking facilities. It continues its strength by ending 2014 with $14.1 billion in cash, after paying out $4 billion in dividends and buying back about $10 billion in stock. Profit margins improved during 2014, with net income up 39% to $3.7 billion or 74 cents a share, from 2013 level. Revenue is up 6% to $14.7 billion. 2015 outlook is for "mid single digit" growth in revenue with continued growth in PC's and servers. PC business was up 3% in the 4th quarter 2015, and the server business up 25% reflecting business investment in cloud computing. However mobile business continues to struggle with losses of $4.2 billion. Intel still depends a lot on PC and server chips for growth, with $49 billion of $55.8 billion in 2014 sales coming from PC's and server chips.