Salesforce Knowledge base is an effective knowledge management system that helps solve issues or answer questions of external customers as well as internal employees, by using articles.
Salesforce Knowledge base is an effective knowledge management system that helps solve issues or answer questions of external customers as well as internal employees, by using articles. In the same way, public knowledge base helps the guest users to find the related articles through the community sites.
Read more at – https://help.salesforce.com/articleView?id=knowledge_whatis.htm&type=5