What is the primary difference between a search engine and a search directory?

A search engine uses a database of manually categorized websites, while a search directory uses automated algorithms to index websites.

A search engine retrieves information by using automated algorithms to index websites, while a search directory relies on human editorsfin categorize and list websites.

A search engine provides results based on user votes, while a search directory displays results in alphabetical order.

A search engine only lists websites from specific regions, while a search directory lists websites from all over the world.