Key Moments in Cyber History By claire--wilsonn Dec 17, 1983 Internet emerges as ARPANET splits civilian from military networks Oct 5, 1984 Apple Computer introduces its Macintosh machine including a mouse Aug 10, 1985 Microsoft introduces its first version of Windows Feb 24, 1989 Microsoft introduces Microsoft Word May 23, 1991 World Wide Web begins Feb 4, 1992 Computer servers introduced