what is difference between Anonymous blocks and Named blocks in sqlserver

Anonymous Blocks :

• Anonymous blocks are saved in files.
• don't provide the security.
• Anonymous blocks are not reusable.
• Can't be called from front-end application.
• Every time compile and executed.

Named Blocks :

• Named blocks are saved in Database.
• provide the security.
• Named blocks are reusable.
• Named blocks can be called from front-end application.
• One time compile and every time execution.