A is the smallest unit of application data recognized bysystem software.

1 Row

2 Field

3 Record

4 Table

A FIELD is recognized as the smallest unit of application data by system software.

Explanation:

Field is recognized as the smallest unit of application data by any system software. The data in relational data base management system (RDBMS) is stored as rows also called as database records or simply records. Each record is a row in database and each record contains fields. Columns in data base are nothing but the fields of all the records. They types of fields are fixed length and variable length.