This tab allows you to specify the name, instance size, and user data associated with the launch configuration.
            - 
                     Type the name of your launch configuration in the
                        Name text box.
                
- 
                     Select an instance size/type from the Instance type
                        drop-down list.
                
- 
                   To specify custom user data:
                   
                       
                           - manually enter the data by selecting the Enter text 
                               option and typing the data into the provided text box.
 
                           - attach a file by selecting the Upload file option 
                               then clicking the Choose File button to browse for the file.
 
 
- 
                    Click the Next button to proceed
                       to the Security tab.