International Business Machines Corporation, nicknamed Big Blue, is an American multinational technology company headquartered in Armonk, New York and present in over 175 countries. IBM is the largest industrial research organization in the world, with 19 research facilities across a dozen countries, having held the record for most annual U.S. patents generated by a business for 29 consecutive years from 1993 to 2021. IBM was founded in 1911 as the Computing-Tabulating-Recording Company, a holding company of manufacturers of record-keeping and measuring systems. It was renamed "International Business Machines" in 1924 and soon became the leading manufacturer of punch-card tabulating systems. During the 1960s and 1970s, the IBM mainframe, exemplified by the System/360, was the world's dominant computing platform, with the company producing 80 percent of computers in the U.S. and 70 percent of computers worldwide. IBM was in the microcomputer market from 1981 to 2005, starting with the product known as the PC, one of IBM's best selling products. Since the 1990s, IBM has concentrated on computer services, software, supercomputers, and scientific research. Wikipedia