SGML, HTML, and XML are all markup languages. The term "markup" originated from editors making revisions to writers' manuscripts. An editor "marks up" the manuscript to highlight certain fields. In computer technology, a markup language is a set of words and symbols that highlights text to define it for a web document. For example, to separate paragraphs and put letters in a boldface type, web designers use markup language. Once you understand the roles SGML, HTML, and XML play in web design, you'll see the kinship these distinct languages have with each other. In a nutshell, SGML, HTML, and XML is a family of languages that help make websites functional and web design dynamic krogerfeed
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