Re: Network databases

From: Tom Ivar Helbekkmo <tih+nr_at_eunetnorge.no>
Date: Thu, 13 Jan 2005 20:00:15 +0100
Message-ID: <86hdllgnnk.fsf@athene.i.eunet.no>

lynn_at_garlic.com writes:

> HTML then was outgrowth of SGML ... and XML is outgrowth of
> combination of HTML and SGML

No. HTML is an SGML application, XML is an extended subset of SGML, and XHTML is an XML application; XHTML 1 is HTML 4 redefined in XML.

HTML and XHTML are markup languages. SGML and XML are languages for defining markup languages -- they're one level up, abstraction-wise.

-tih

-- 
Tom Ivar Helbekkmo, Senior System Administrator, EUnet Norway Hosting
www.eunet.no  T +47-22092958 M +47-93013940 F +47-22092901 FWD 484145

Received on Thu Jan 13 2005 - 13:00:15 CST