what is the difference between SOQL and SOSL in Salesforce

what is the difference between SOQL and SOSL in Salesforce?

SOQL ( Salesforce Object Query Language)	SOSL (Salesforce Object Search Language)
Only one object at a time can be searched Query all type of fields It can be used in triggers and classes DML operation can be performed on query results	Many objects can be searched at a time Query only e-mail, phone and text It can be used in classes but not in triggers DML operation cannot be performed on search result