By Mayo Clinic Staff. Angina is a term used for chest pain caused by reduced blood flow to the heart muscle. Angina (an-JIE-nuh or AN-juh-nuh) is a symptom of coronary artery disease. Angina is typically described as squeezing, pressure, heaviness, tightness or pain in your chest.
For the first time since Microsoft shares began trading on a stock market in 1986, shareholders will receive an annual dividend of 16 cents per share. However, the firm also cut its revenue targets, and as a result Microsoft's share price took a tumble in after hours trading. On Friday the share price dropped 4.5% within minutes of market open.
As of 2011, it was the world's largest software maker by revenue, and one of the world's most valuable companies. Microsoft was founded by Paul Allen and Bill Gates on April 4, 1975, to develop and sell BASIC interpreters for the Altair 8800. It rose to dominate the personal computer operating system market with MS-DOS in the mid-1980s, followed by Microsoft Windows.