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General Discussion

Posted by Donghyeok Yun
Donghyeok Yun
4,514 Points

What is the difference between HTML, XML, XHTML, and SGML ?

I saw this one video the difference between HTML, XML, XHTML, and SGML. But I was confused so can anyone simplify what the difference is from you guy's knowledge. Also, I'm curious but about how many markup languages are there, the one with 'ML' at the end ? Also, should I learn those for markup languages?

1 Answer

Steven Parker
Steven Parker
242,284 Points
Steven Parker
Steven Parker
242,284 Points

I found this article that may help sort out the first few of those. And a nice diagram from a set of lecture notes on web basics, though it's not very explanative in itself. But the wikipedia pages will give you thorough information for each: HTML, XML, XHTML, and SGML.

But as to what to learn, if you want to do any kind of web development, start with HTML. Once you're comfortable with that, the others will be easier to pick up if and when you may need them.