The "MIME Types" screen records and changes MIME types. The MIME specification (Multipurpose Internet Mail Extensions) was proposed in 1992 to send non-ASCII files by email. The ASCII standard consists of the standard Western European and American characters, so it cannot carry images or other material. Today, the HTTP protocol also uses the MIME specification to present all kinds of files in web pages. The entry fields have the following meaning: - "Code": The code of the MIME type. - "Description": The description of the MIME type. MIME types link file extensions to MIME types. In this way, the MIME type of a file can be determined even when the file does not state the correct MIME type. Registering MIME types is a typical activity for application developers. See the warning under Application Development.