Minimum hardware requirement for windows 7

Microsoft suggested minimum hardware recommendations for systems that will be running the Windows 7 Beta. These recommendations for beta release only and subject to change:
Processor: 1 GHz 32-bit or 64-bit processor
Memory: 1 GB of system memory
Hard drive: 16 GB of available disk space
Video card: Support for DirectX 9 graphics with 128MB memory (in order to enable Aero theme)