File:
File is a collection of records which are logically related to any object. Record value can be in any form like data.
For eg. : Each student records having values of Roll no, Name, Class. For arranging data we use files.
Types of files:
Physical file:
- Physical file concern with actual data that is stored.
- It stores description about how the data is to be represented.
Logical file
- Logical file: do not contain data.
- They contain a description of records that are found in one or more physical files.
- A logical file is a view or representation of one or more physical files.
Special character file:
- At the time of file creation we insert some special characters in the file.
- For eg: Control + z for end of a file which having ASCII value 26