August 12, 1981: IBM launches PC with Microsoft MS-DOS 1.0 operating system
May 22, 1990: Microsoft launches Windows 3.0
August 24, 1995: Microsoft launches Windows Copyright
June 25, 1998: Microsoft launches Windows 98
February 17, 2000: Microsoft launches Windows 2000
October 25, 2001: Microsoft launches Windows XP
April 25, 2003: Microsoft launches Windows Server 2003
Linux Memorabilia:
October 5, 1991: Linus torvalds in newsgroup comp. Os Minix published a formal version of Linux V0.02.
1993: The first public version of Linux, Linux1.0, was spread by the full spread of copyright. It requires all the source code to be made public and no one can profit from the Linux deal.
In the summer of 1997: of the 160 alpha graphics workstations used to make the film Titanic, 105 were based on the Linux operating system. Copyright Institute
March 1999: There have been Intel, Netscape, IBM, Compaq, Oracle, Novell and other companies announced the investment of Linux development vendors Red Hat Company, and the Microsoft secretly developed Linux version of Office News.
March 1999; Linux has a minimum estimate of 10 million installed on a global scale.