On June 25, 1981 Microsoft was officially incorporated in Washington as a privately held corporation with Bill Gates as President and Chairman of the Board while Paul Allen as Executive Vice President.<ref>[http://www.thocp.net/companies/microsoft/microsoft_company.htm Incorporation]</ref> On August 12, 1981, IBM introduced its new Personal Computer using Microsoft's 16-bit computer operating system called MS-DOS 1.0.<ref>[http://inventors.about.com/library/weekly/aa033099.htm investors.about.com]</ref> | On June 25, 1981 Microsoft was officially incorporated in Washington as a privately held corporation with Bill Gates as President and Chairman of the Board while Paul Allen as Executive Vice President.<ref>[http://www.thocp.net/companies/microsoft/microsoft_company.htm Incorporation]</ref> On August 12, 1981, IBM introduced its new Personal Computer using Microsoft's 16-bit computer operating system called MS-DOS 1.0.<ref>[http://inventors.about.com/library/weekly/aa033099.htm investors.about.com]</ref> |