.. Windows.
Microsoft Windows was 21 a couple of days ago.
Some interesting points:
Windows 1.0 was released on 20th Nov 1985 and the hardware requirements were 256KB of RAM, DOS 2.0 and two floppy drives, two years late.
Microsoft sent out a press kit featuring a squeegee and a washcloth to announce the launch of Windows 1.0, a full two years before the product was launched.
Windows 1.0 was only out for two weeks before it had to be patched to fix bugs (sound familiar?).
Windows crashes an estimated 25m times a day [blimey]
read more:
http://www.connectedinternet.co.uk/2006/11/18/1046/