Primary cold agglutinin disease is usually associated with monoclonal cold-reacting autoantibodies. Primary cold agglutinin disease is chronic and occurs after the fifth decade of life, with a peak incidence in the seventh and eighth decades. (See Epidemiology.) Secondary cold agglutinin disease may be associated with either monoclonal or polyclonal cold-reacting autoantibodies.
Microsoft was founded by Paul Allen and Bill Gates on April 4, 1975, to develop and sell BASIC interpreters for Altair 8800. It rose to dominate the personal computer operating system market with MS-DOS in the mid-1980s, followed by Microsoft Windows.
Who are Microsoft's (MSFT) main competitors? Microsoft Corporationâs (MSFT) primary competitors include some of the most prominent technology companies in the industry. The list includes well-known brands such as Apple (AAPL), Google (GOOG), SAP, IBM (IBM) and Oracle (ORCL), among others. Because Microsoft is a diversified corporation that offers many types of products and services, the company faces stiff competition in several key areas of the technology sector.