Exchange 2010 Prerequisites

Let me share the details or vital links which are useful regarding exchange server 2010 prerequisites. 
To run Microsoft Exchange Online you need:

Operating systems

• Windows 7
• Windows Vista with Service Pack 2
• Windows XP with Service Pack 3
• Windows XP Home Edition is supported, but it will not support federated identity
• Windows XP Media Center edition is supported, but it will not support federated identity
• Mac OS X 10.5 Leopard, 10.6 Snow Leopard

System software

• Microsoft .NET Framework 3.0 (for Windows XP)
• Java client 1.4.2 (for Macintosh OS X)

Office clients

• Microsoft Office 2010 or Office 2007 Service Pack 2
• Office 2008 for Mac and Microsoft Entourage 2008 Web Services Edition
• Office 2011 for Mac and Outlook 2011 for Mac
• .NET Framework 2.0 or later

Client applications

• Services Connector

Browser software—Microsoft Online Portal

• Internet Explorer 7 or later
• Mozilla Firefox 3.x
• Apple Safari 3.x

Browser requirements—Microsoft Outlook Web App

• Internet Explorer 7 or later
• Firefox 3 or later
• Safari 3 or later on Macintosh OS X 10.5
• Chrome 3 and later versions
• Outlook Web App also has a light version that supports a reduced set of features on almost any browser
  
  
  Here are some Microsoft published links:
  
  

  Installing Exchange 2010 Prerequisites on Server 2008 R2

  
  

  Automating Exchange 2010 Pre-Requisites on Windows Server 20008 R2

  
  

  How to install Exchange 2010 prerequisites automatically