超媒体是超级媒体的缩写。 超媒体是一种采用非线性网状结构对块状多媒体信息(包括文本、图像、视频等)进行组织和管理的技术。 超媒体在本质上和超文本(HyperText)是一样的,只不过超文本技术在诞生的初期管理的对象是纯文本,所以叫做超文本。 随着多媒体技术的兴起和发展,超文本技术的管理对象从纯文本扩展到多媒体,为强调管理对象的变化,就产生了超媒体这个词。 参考文章:超媒体
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文章目录
超媒体(Hypermedia)超媒体的起源和历史超媒体的主要特点非线性结构多媒体元素交互性
超媒体的应用参考文章
超媒体(Hypermedia)
超媒体是一种采用非线性网状结构对块状多媒体信息进行组织和管理的技术。这种信息可以包括文本、图像、视频等。与传统的线性媒体相比,如书籍和电影,超媒体提供了一个更加丰富和交互式的体验。
超媒体的起源和历史
超媒体这个概念最早由Ted Nelson在1965年提出1。Nelson设想了一个名为"Xanadu"的系统,它允许用户创建和跟踪链接到其他文档,从而形成一个大型、互联的信息网络。
后来,随着个人电脑和互联网的发展,超媒体的概念开始变得更加具体和实用。特别是在1990年,Tim Berners-Lee发明了万维网,将超媒体应用于全球范围内的信息共享。
超媒体的主要特点
非线性结构
与线性媒体不同,超媒体信息的呈现方式不依赖于特定的顺序。用户可以根据自己的需求和兴趣,通过点击链接来浏览相关的内容。
多媒体元素
超媒体可以包含各种类型的内容,如文本、图像、音频和视频等。这些内容可以被组合在一起,以提供一个丰富和动态的信息体验。
交互性
超媒体允许用户通过点击链接或按钮等方式,直接与信息进行交互。这增加了用户参与度,并使信息的获取变得更加方便。
超媒体的应用
超媒体广泛应用于各种场景中,包括教育、娱乐、商业和科研等。例如,网页就是一种常见的超媒体应用,它们使用HTML、CSS和JavaScript等技术,将各种类型的内容整合在一起,提供了丰富的用户体验。
// 这是一个JavaScript代码片段,用于处理用户点击事件
document.getElementById("myButton").addEventListener("click", function() {
alert("You clicked the button!");
});
除此之外,电子书籍、在线课程、数字艺术作品和虚拟现实环境等也都是超媒体的应用实例。
参考文章
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Nelson, T. (1965). Complex information processing: a file structure for the complex, the changing and the indeterminate. Proceedings of the 1965 20th national conference, 84-100. ↩︎