近几年,Internet和多媒体技术的发展异常迅速。在Internet上人们通过E-Mail来交换信息,通过WWW网来查询和发布各种信息。一方面Internet网上的信息多媒体化,另一方面一些局域网或广域网上的分布式多媒体系统希望移植到Internet上。本期的这组文章简要介绍了Internet网上的多媒体应用。并概述了与Internet相关的几个新型语言——HTML、VRML、Java的特点及用法。 In recent years, the development of Internet and multimedia technology has been extremely rapid. In the Internet, people exchange information through E-Mail, through the WWW network to query and publish a variety of information. On the one hand, Internet multimedia information on the Internet, on the other hand, some LAN or WAN distributed multimedia system hopes to port to the Internet. This issue of this article gives a brief introduction to multimedia applications on the Internet. And summarizes several new languages ​​related to the Internet - the characteristics and usage of HTML, VRML, Java.