Microsoft was founded on 4 April 1975 by Bill gates and Paul Allen. Microsoft started to make music players, computer software, consumer electronics, personal computers, and related services. Microsoft made a deal with IBM that they will make an operating system which will run on IBM computers. Apple made an OS with a graphical user interface, after which Microsoft did the same. Of course, Apple got the idea of making an operating system with graphical user interface from Xerox. Later, Microsoft was accused by apple for copying MacOS and selling it as windows. Apple sued Microsoft and a legal fight started between them which finally ended when apple went bankrupt and Microsoft saved them. Microsoft went on to make operating systems such as windows 1.0, windows 2.0, windows 3.x, windows 95, windows 98, windows ME, windows xp , windows vista windows 7, windows 8 pro, windows 8 and windows 10. Some of Microsoft’s failures were windows phone, clippy and bob. They also made