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BIT

The bit is represented by 0 for OFF or 1 for ON. It is a binary digit. It is the smallest unit of data the computer can store in a database.

BYTE

A byte is a collection of bits. Each byte consists of eight bits. Each byte represents a character.

FIELD

A field is a unit of data consisting of one or more characters (bytes). A field is the smallest unit of meaningful information in the database. Each field has a field name. The field name describes the data that should be entered into the field, such as StudentID (Student ID), Name, Address and MyKad Number.

RECORD

A record is a collection of related fields. Example : Each record stores data about a students. For example, a student record is a collection of fields about a student.

FILE

A file is a collection of related records. For example, a student file is a collection of students’ records.