MS Access is a relational database program with integrated features for database creation, data input, querying, and reporting. It uses objects like tables, queries, forms, and reports to organize and present information. To use MS Access, you create a database, enter data into tables, query the data, and optionally create reports from the database. Key objects include tables for storing data fields and records, queries for searching and compiling data, forms for entering and viewing data, and reports for printed output.