What is LDAP used for?

Question

I know that LDAP is used to provide some information and to help facilitate authorization.

But what are the other usages of LDAP?

Answer 1

Well, there are LDAP servers and the LDAP protocol. Combined, it's a data store, or a database. It's not relational, but it's just a place to store data, and it's optimized to be efficient at reads more than writes. It doesn't support transactions.

Now, it happens to be very popular for storing credentials, but that's by no means its only purpose, and not its original purpose.