I believe you often see the word “system image file” when reading the system installation tutorial. What does system image file mean? There are many users, especially the novices who have just come into contact with computers, who don’t know what system image file is, so the editor of system city will explain the definition of system image file and common system image formats.
1、 System image file definition
Image file is a kind of file similar to rar or zip compressed file. A specific series of files are made into a single file according to a certain format for users to download, such as operating system image and game image. Image files can be recognized by specific software and recorded to CD.
System image files include operating system files, boot files, partition table information, etc., which are used for system installation and repair. System image files can be understood as clone files of all data on the installation CD of the whole system, such as Microsoft original system, or backup files of operating system partition, such as ghost system image. Generally, the suffix of image files is. ISO 。
2、 Common system image file formats
1. Standard ISO image file *. ISO
2. Compressed ISO image *. Isz
3. High compression system semi encrypted file *. ESD
4. Windows file based image *. WIM (in system ISO file)
5. Ghost system backup file *. GHO (in ghost system ISO file)
6. Apple Mac system compressed image file *. Dmg
The above is the definition of system image file and the introduction of common system image file format. If you don’t understand, you may as well learn the next article, hoping to help you.