what is the purpose of MIME type code example

Example 1: mime type

media type is a two-part identifier to file formats and format contents 
transmitted on the Internet. The Internet Assigned Numbers Authority is 
the official authority of the standardization and publication of these 
classifications. 
also almost of an old extension on the internet is MIME type.

Example 2: type mime

A media type (also known as a Multipurpose Internet Mail Extensions or MIME type) 
is a standard that indicates the nature and format of a document, file, or assortment 
of bytes.