Bill Gates (Bill Gates) Paul Allen (PaulAllen)
Microsoft (microsoft) dominate global PC software
1981 and IBM signed a contract by chance, so that all IBM PC production costs must be paid to Microsoft. Gates at Microsoft's huge shares so that he became the world's richest man, although Alan health reasons after a single business that IBM will soon leave the company, but he also let him be able to dabble in Microsoft shares their favorite professional sports, space travel and cause other risks. Gates, through their own personal funds, becoming the largest ever philanthropist, he is currently focusing on global health and education issues.