Microsoft recently released developer preview version of Windows 8 after the successful and popularity of Windows 7 Professional and Windows Server 2008 recently.

We have to wait for final release of Windows 8. The current release is meant for developers to try their hands on upcoming Windows 8 features.
Microsoft Windows 8 beta version may launch soon. In Beta version of Windows 8, picture will be clear of what is the need and system requirement of windows 8. Full version of Windows operating system always launch after the BETA tests by the software programmers of Microsoft. The system configuration or system requirement is the need of suitability of Windows OS and the system units must match or equal to the given system requirements of OS.

In system requirement, hardware configuration must be match with the hardware requirements for Windows operating systems. However, one can upgrade to latest system configuration if want to upgrade the latest operating system.