Concept of Computer Files

A computer file is like a container that stores organized information. Think of it as a school register book. The smallest unit is a data item or field, which is a single piece of information like a student's name or age. When you combine related fields together, you create a record. For example, one student's complete information (name, age, class, address) forms one record. Multiple records of similar type make up a file. So all students' records in your school register form a student file. Finally, when you have several related files working together, you get a database. An example is your school's examination database containing the student file, subject file, and result file all connected together. Understanding this hierarchy helps you grasp how computers organize data systematically.