Difference between PowerShell and Stsadm in SharePoint

• Windows PowerShell is built on the Microsoft .NET Framework and accepts and returns .NET Framework objects. Hence, can interact with .Net objects directly.
• Here we use commandlets (cmdlet) instead of commands. Commandlet is a instance of .Net objects
• We can automate the tasks using power shell scripts.
• Windows PowerShell also gives you access to the file system on the computer and enables you to access other data stores, such as the registry and digital signature certificate stores.