What is the difference between Custom tag and Coldfusion Component?

What is the difference between Custom tag and Coldfusion Component?

The differences are

Custom Tags:

-A single entry point is available for custom tags

-Custom tags does not support formalized parameter passing and validation mechanism

-Persistence is not possible for custom tags

-Custom tags are accessible locally and only by ColdFusion

ColdFusion Component:

-Multiple entry points are available for CFC

-CFC does support formalized parameter passing and validation mechanism

-Persistence is possible for CFC

-CFCs can be accessed as web services