File extension img is used to stored the image files. An image is copied from a CD and stored to the hard drive with file extension img file extension IMG allowing it to be recognized as a CD or hard drive when mounted..In creating CD image file, IMG works similar with ISO for Nero.
These file extensions are also beneficial for us. By simply looking at the filename, we can determine what type of information is stored to that and what applications can open these files.There are also several applications designed to execute and open files with different file extensions.A common example of these software applications are the WYSIWYG (What You See Is What You Get) applications. WYSIWYG?s are used to design web pages to be uploaded to the Internet.
Image File Types of the Web:
1.GIF: Graphic Interchange Format
2.Jpeg: Joint photographic Experts Group Format
3.Portable Network Graphics Format
GIF : It should be used for Simple Animation, Charts, Diagrams, Line art, Flat illustrations When transparency is needed
JPEG: It should be used for Photographs, Large images or images with a lot of detail
PNG: While a GIF allows you to specify one color as fully transparent, PNG allows up to 254 colors of partial transparency.
plsc file is also an executable file which is a part of communication process enabling interacting with all the devices which are having the facility of internet connection .





