By Nicola Mawson, Contributing journalist
Johannesburg, 26 Oct 2012
Software giant Microsoft celebrated the launch of its latest operating system in Johannesburg last night, and tasked celebrities with taking the audience through some of Windows 8's key features.

Windows 8 is Microsoft's first operating system release since Windows 7, which launched three years ago. Windows 8 is a bid to reinvent the traditional look and feel of the operating system, with a more intuitive user interface.

Microsoft has done away with the "start" button and reconfigured the start screen to group items together, such as contacts and social messaging, in one hub.

Gold medal Olympic swimmer Chad le Clos appreciates functionality, such as the picture password and the fact that the system synchronises with his phone.

Windows 8's picture password feature allows computer users to select a photo and then specify a gesture to authenticate secure login.

Mountaineer Sibusiso Vilane, the first black African to summit Everest, says the software allows him to plan his adventures, as he can look up weather information and he can keep in touch with his family.

