SharePoint 2010 currently installed version

There are different methods to find currently installed version of SharePoint.

Method 1:  SharePoint 2010 Central Administration:

1.     Open SharePoint 2010 Central Administration

2.     Click System Settings

3.     Click Manage Servers in This Farm

4.     See Configuration Database Version field

Method 2: Detailed from SharePoint 2010 Central Administration:

1.     Open SharePoint 2010 Central Administration

2.     Click Upgrade and Migration

3.     Click Check Product and Patch Installation Status

4.     See Version column

Method 3: SharePoint PowerShell:

1.     Open SharePoint 2010 Management Shell(run as administrator) 

2.     Type  (get-spfarm).buildversion