S tandard G eneralised M ark up L anguage - a standard focussed on documents. The standard concentrates on documents retaining their format irrespective of the computer they are being used on, the operating system the application program used to view them. HTML is based on SGML.
Meaning of SGML in English
English glossary of Internet and PC terminology. Английский глоссарий Интернет и ПК терминологии. 2012