You might have already known that Microsoft announced the preview version of SharePoint 2013 (aka SharePoint 15) last month. In this article I would like to give an overview of the installation of the same on a Windows Server 2012 machine.
http://paulswider.files.wordpress.com/2012/07/sharepoint-2013-preview-download1.jpg

Download

Please note that there are two versions to download:
  • SharePoint Foundation 2013
  • SharePoint Server 2013
Choose the version which you require:
  • SharePoint Foundation 2013 (1 GB) Download

  • SharePoint Server 2013 (2 GB) Download

Please note that the file is in Image (.img) format.  You need an Image File Extractor to extract and run the setup.  Following is the link for an Image File Extractor. (http://www.winimage.com/)