System Requirements (references Microsoft site)
  
 					Windows 7 Service Pack 1,  					Windows 8, Windows Server 2008 R2 SP1, Windows Server 2012 					
 					- Windows 7 SP1 (x86 and x64) 
- Windows 8 (x86 and x64) 
- Windows Server 2008 R2 SP1 (x64) 
- Windows Server 2012 (x64)
Hardware Requirements  				 					- 1.6 GHz or faster processor 
- 1 GB of RAM (1.5 GB if running on a virtual machine)  						
- 10 GB of available hard disk space 
- 5400 RPM hard disk drive 
- DirectX 9-capable video card that runs at 1024 x 768  						or higher display resolution
  			  			Visual Studio 2012 Premium
 			 				This edition has the capability to solve the most difficult  				problems with the help advanced tools that makes the development  				process very fast and reliable.
 			 				This edition includes an advanced code analysis tool that helps  				to avoid creating runtime errors in a program during the coding  				phase of an application, it also provides advanced testing and  				debugging tools that finds and removes the runtime errors very  				quickly.
 			 				Provides the facility to manage the testing environment of the  				application.
 			 				 
 			 				Key Points
 			- includes advanced tools. 
- advanced code analysis tool. 
- advanced testing and debugging tools. 
- manage testing environment. 
- provides tha ability to track every role and task of  				business and development teams.
 			 Download a Trial version from the Microsoft website: 			
 			System Requirements (reference Microsoft site)
 			 				Operating System
  
 			 				Windows 7 Service Pack 1, Windows 8, Windows Server 2008 R2 SP1,  				Windows Server 2012 
 			 				 					- Windows 7 SP1 (x86 and x64) 
- Windows 8 (x86 and x64) 
- Windows Server 2008 R2 SP1 (x64) 
- Windows Server 2012 (x64)
Hardware Requirements
  - 1.6 GHz or faster processor 
- 1 GB of RAM (1.5 GB if running on a virtual machine)  						
- 10 GB of available hard disk space 
- 5400 RPM hard disk drive 
- DirectX 9-capable video card that runs at 1024 x 768  						or higher display resolution 
  			  			 				Visual Studio 2012 Professional
 				 				
 				This edition provides the facility for basic tasks to create,  				debug and deploy applications, it provides an effective design  				surface that targets various platforms including SharePoint,  				Silverlight and cloud applications.
 			 				 
 			 				Key Points 
 			- Useful for basic tasks. 
- Powerful design surface using CSS3 and HTML5. 
- Targets various platform and technologies including  				Silverlight,SharePoint and cloud applications. 
- Similar to other editions, it supports CSS3 and HTML5.
Download a trial version from the Microsoft website:
 			 			 				System Requirements (reference the Microsoft site)
 			 				 				Operating System
 				   					Windows 7 Service Pack 1, Windows 8, Windows Server 2008 R2  					SP1, Windows Server 2012  					
- Windows 7 SP1 (x86 and x64) 
- Windows 8 (x86 and x64) 
- Windows Server 2008 R2 SP1 (x64) 
- Windows Server 2012 (x64)
 					Hardware Requirements- 1.6 GHz or faster processor 
- 1 GB of RAM (1.5 GB if running on a virtual machine)  						
- 10 GB of available hard disk space 
- 5400 RPM hard disk drive 
- DirectX 9-capable video card that runs at 1024 x 768  						or higher display resolution
  			  			 				Visual Studio 2012 Test Professional
 			 				
 				This editions manages and executes the test cases, defines  				requirements, gets customer feedback and traces everything in  				the project until the final deployment.
 			 				It solves the complex application development process by  				integrating the testers, product managers and stakeholders in  				the development process.
  
 			 				Key Points 
 			- Manages the testing  requirement, 
- Defines the requirements and execute test cases. 
- Retrieves the customer's feedback. 
- Traces application entire application development process.
 			Download a trial version from the Microsoft website:
  		 			 			System Requirements  			(reference the Microsoft site)
 			   				Operating System
  
 			Windows 7 Service Pack 1, Windows 8, Windows Server 2008 R2 SP1,  			Windows Server 2012  			
- Windows 7 SP1 (x86 and x64) 
- Windows 8 (x86 and x64) 
- Windows Server 2008 R2 SP1 (x64) 
- Windows Server 2012 (x64)
Hardware Requirements
 			- 1.6 GHz or faster processor. 
- 1 GB (32 Bit) or 2 GB (64 Bit) of RAM (Add 512MB to host if  				running in a virtual machine). 
- 500 MB of available hard disk space. 
- 5400 RPM hard disk drive. 
- DirectX 9-capable video card running at 1024 x 768 or higher  				display resolution.
Visual Studio Team Foundation Server  			2012 
 			 				Provides the communication among teams, this edition is  				responsible for application Life Cycle Management for building  				fast and accurate applications.
 			 				Download a trial version from the Microsoft website:
 			 			 				System Requirements (reference the Microsoft site)
  
 			 				Operating System   					Windows 7 Service Pack 1,Windows 8, Windows 8.1, Windows  					Server 2008 R2 SP1, Windows Server 2008 Service Pack 2,  					Windows Server 2012 
Hardware Requirements: 					- 2.2 GHz or faster processor 
- 1 GB RAM – Basic installation 
- 2 GB RAM – Standard installation (no SharePoint)  						
- 10 GB RAM – Full installation (includes SharePoint)  						
- 8 GB of available hard disk space
Summary 					
 					I hope this article is useful for understanding basic  					information about the Visual Studio 2012 editions, if you  					have any suggestion regarding this article then please  					contact me.