NET 3.5 SP1 is a requirement for SQL Server 2012 when you select Database Engine, Reporting Services, Master Data Services, Data Quality Services, Replication, or SQL Server Management Studio, and it is no longer installed by SQL Server Setup.
.NET 4.0 is a requirement for SQL Server 2012. SQL Server installs .NET 4.0 during the feature installation step.
Windows PowerShell 2.0
Internet Explorer 7 or a later version.
for more information go through the following link:
http://msdn.microsoft.com/en-us/library/ms143506.aspx
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