Words we can't use as a File/Folder name in any Operating System

Hi Smarttricks Smart Users I am back with a new Important article that every Computer engineer should know which is explained below:

In MS-DOS, several special "device files" were available to aid in performing certain tasks, such as clearing the screen or deleting extraneous output from a program. In order to maintain backwards-compatibility, all versions of Windows up to and including Windows 7 will refuse to allow you to create a file with these "reserved" device file names. 

Also Read: Create A Undeletable And Unrenamable Folders In Windows

The following file names are reserved: 

• CON
• PRN
• AUX
• NUL
• COM1
• COM2
• COM3
• COM4
• COM5
• COM6
• COM7
• COM8
• COM9
• LPT1
• LPT2
• LPT3
• LPT4
• LPT5
• LPT6
• LPT7
• LPT8
• LPT9

CON, incidentally, was a device file used to capture whatever was printed onscreen.

Please do not hesitate to comment below if you have any more doubt's.

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