Data can include facts about objects like names, ages, and files. A database is a systematic collection of data that supports electronic storage and manipulation of data to make data management easy. Examples of databases include online telephone directories, utility billing systems, and social media platforms like Facebook that store user profiles, friends, activities, and more. Databases come in different types including distributed, relational, object-oriented, centralized, open-source, cloud, data warehouses, NoSQL, graph, OLTP, personal, multimodal, document/JSON, hierarchical, and network databases.