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.
Microsoft Surface. Microsoft Surface is a series of touchscreen Windows personal computers and interactive whiteboards designed and developed by Microsoft. The devices are manufactured by Pegatron and are designed to be premium devices that set examples to Windows OEMs. It comprises four generations of hybrid tablets, 2-in-1 detachable notebooks, a convertible desktop all-in-one, an interactive whiteboard, and various accessories all with unique form factors. With the exception of the first-generation Surface and