Computer Files

• Types of Storage Device.

  Volatile storage is temporary. Volatile values (stored in variables) are lost when the computer loses its power. The Random Access Memory (RAM) is being used when a Java program stores a value in a variable.
• Types of Storage Device:
• Types of Storage Device:

  Non-volatile storage is permanent. A Java program that is saved on a disk uses a non-volatile storage.
• A computer file is a collection of data stored on a non-volatile device.
• The common characteristics of a text file and binary file are size, name, and date and time of creation.
• Permanent files are commonly stored in the main directory or the root directory.
• To organize stored files, folders or directories are used.
• USers may also create folders within folders. The complete list of the disk drive plus the hierarchy of directories in which the file is located is called path.
• Example of a complete path: C:\Java\Chapter8\example.txt
• In the windows operating system, the backlash (\) is the path delimiter - the special character used to separate path components.