Windows 7 surpasses XP, Vista
Windows XP used to be the king of the hill and Windows Vista launched with a lot of chatter. However, Windows 7 seems to have the upper hand in performance and security and is quickly gaining devotees.
When it came to PCs, it used to be an XP world. At its peak in January of 2007, the Windows eXPerience operating system, commonly known as XP, held a 76.1 per cent market share, according to data from W3Schools, a web developerís portal.
Now PC users have many choices. Since launching XP, Microsoft has rolled out Windows Vista and Windows 7, with Windows 8 rumoured to be coming in 2012.