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All information are stored and recognized in the computer in different types of file formats. There are
different file formats for sound files, video files, text files, graphics files, etc.
Each of these have different icons and a significant meaning. All files are identified by their extensions
in addition to their names. The extension is assigned by the program itself in which the files are created.
Some common files types with their extension are:
File (Type) Extension File (Type) Extension
Open Document Text .odt Open Document Presentation .odp
Open Document Database .odb Open Document Drawing .odg
Open Document Spreadsheet .ods HTML Document .html or .htm
File (Type) Extension File (Type) Extension
Music/video .mp4, .mp3, .wav, etc. XML Document .xml
Picture or Image .png,.jpg, etc. Portable Document Format .pdf
To Check File System of Hard Disk:
Step 1: Right Click on ‘My Computer’ icon from the desktop.
Step 2: Click on ‘Manage’ option.
2
(1)
Step 3: ‘Computer Management’ window appears on the screen.
Step 4: Click on ‘Disk Management’ option.
Step 5: File System of the Hard Disk installed in the Computer appears on the screen.
Basics of Information Technology 35

