This chapter discusses database management systems and their advantages over traditional flat file data storage. It covers database concepts like data normalization, entity relationship diagrams, and relational databases. The key aspects are:
1) Databases help resolve issues with data redundancy, inconsistent updates, and task-data dependency in flat file systems by storing data centrally.
2) Relational databases organize data into tables and link them through primary and foreign keys to reduce data anomalies.
3) Proper database design involves identifying entities, modeling relationships, normalizing tables, and creating user views.