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file
directory
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A collection of data or information that has a name, called the filename. Almost all information stored in a computer must be in a file. There are many different types of files: data files, text files , program files, directory files, and so on. Different types of files store different types of information. For example, program files store programs, whereas text files store text.

File Types

Batch fileSame as command file¾contains operating system commands
Binary file Contains data or instructions in binary format
Command file Contains operating system commands
Data fileContains data
Directory file Contains bookkeeping information about files that are below it
Executable file Contains a program or commands in an executable format
Library file Contains functions in object format
Map fileContains a map of a program
Object file Contains code that has been compiled
Text fileContains textual data (that is, data that can be read by humans), including files you create with a text editor and any file in ASCII format.



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