SGML is the Standard Generalized Markup Language (ISO 8879:1985), the international standard for defining descriptions of the structure of different types of electronic document. There is an SGML F... 推广和普及Java技术，为国内众多...

HTML is the HyperText Markup Language (RFC 1866), a small application of SGML used on the Web.It defines a very simple class of report-style documents, with section headings, paragraphs, lists,... 推广和普及Java技术，为国内众多的...

Not quite; SGML is the mother tongue, and has been used for describing thousands of different document types in many fields of human activity, from transcriptions of ancient Irish manuscripts to th... 推广和普及Java技术，为国内众多...

XML is a project of the World Wide Web Consortium (W3C), and the development of the specification is being supervised by their XML Working Group. A Special Interest Group of co-opted contributors a... 推广和普及Java技术，为国内众多...

It removes two constraints which were holding back Web developments:dependence on a single, inflexible document type (HTML);the complexity of full SGML, whose syntax allows many powerful but ... 推广和普及Java技术，为国内众多的...

HTML is already overburdened with dozens of interesting but incompatible inventions from different manufacturers, because it provides only one way of describing your information.XML allows grou... 推广和普及Java技术，为国内众多的...

Why do we need all this SGML stuff? Why not just use Word or Notes?Information on a network which connects many different types of computer has to be usable on all of them. Public information can... 推广和普及Java技术，为国内众多的...

Online, theres the XML Specification and ancillary documentation available from the W3C; Robin Covers SGML/XML Web pages with an extensive list of online reference material and links to software;... 推广和普及Java技术，为国内众多的...

Where can I discuss implementation and development of XML?The two principal online media are the Usenet newsgroups and the mailing lists. The newsgroups are comp.text.xml and to a certain exten... 推广和普及Java技术，为国内众多的...

C and C++ (and other languages like FORTRAN, or Pascal, or BASIC, or Java or dozens more) are programming languages with which you specify calculations, actions, and decisions to be carried out in ... 推广和普及Java技术，为国内众多...

For the average user of the Web, nothing except use a browser which works with XML (see the question about browsers). Remember some XML components are still being implemented, so some features are ... 推广和普及Java技术，为国内众多...

Authors and providers can design their own document types using XML, instead of being stuck with HTML. Document types can be explicitly tailored to an audience, so the cumbersome fudging that has t... 推广和普及Java技术，为国内众多...

Remember the XML specification is still relatively new, so a lot of what you see now is experimental, and because the potential number of different XML applications is unlimited, no single browser ... 推广和普及Java技术，为国内众多...

No, existing SGML and HTML applications software will continue to work with existing files. But as with any enhanced facility, if you want to view or download and use XML files, you will need to us... 推广和普及Java技术，为国内众多...

No. XML itself does not replace HTML: instead, it provides an alternative which allows you to define your own set of markup elements. HTML is expected to remain in common use for some time to come,... 推广和普及Java技术，为国内众多...