The difference between hypertext and hypermedia is that hypertext is a subset of hypermedia. Hypertext is the electronic text format while hypermedia pertains to the audio, text, graphics, and video interconnected using hyperlinks.
This is a broad question and can be narrowed down by what hypertext is and why it is useful. See the related questions of this question for "What is hypertext?" and "Why is hypertext useful?"
Hypertext is text that has been marked up with tags to indicate its structure. Hypertext also, by definition, is capable of linking between separate documents using "hyperlinks." Plain text is not capable of this.
HyperText Markup Language .
Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems.[1] Its use for retrieving inter-linked resources, called hypertext documents, led to the establishment of the World Wide Web in 1990 by English physicist Tim Berners-Lee. There are two major versions, HTTP/1.0 that uses a separate connection for every document and HTTP/1.1 that can reuse the same connection to download, for instance, images for the just served page. Hence HTTP/1.1 may be faster as it takes time to set up such connections.--From Wikipedia
HTML stands for HyperText Markup Language.
hypertext- is for texthypermedia is for media
Hypermedia is a system that links different forms of information together using a hypertext. As an extension to hypertext, it handles graphics videos, data, audio, and text.
The World Wide Web
No difference
Hypermedia allows non-linear navigation and interaction with elements such as text, images, audio, and video through hypertext links, providing a more interactive user experience. In contrast, linear media presents content in a pre-determined sequence without options for user navigation, such as traditional TV shows or movies.
Carl Franklin has written: 'Why Innovation Fails' 'Hypertext/hypermedia in schools--a resource book' -- subject(s): Hypertext systems, Interactive multimedia, Computer assisted instruction
difference betweeen HL3 and Hl3A
HyperText Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems. It is used for retrieving inter-linked resources, called hypertext documents, on the internet. You see http as the first letters in the address field when using the internet.
Multimedia is based on two key concepts; integration and interactivity while hypermedia is based on a relational database organisation
Embedded references in hypermedia documents are called hyperlinks. Hyperlinks are clickable elements that direct users to another resource, such as another webpage, document, or multimedia file. They are a fundamental feature of the web that enable users to navigate and interact with content easily.
The hyperlink is what points to the location of which the hypermedia is stored and to the hypermedia itself
Piet A. M. Kommers has written: 'Cognitive Support for Learning' 'Document management for hypermedia design' -- subject(s): Hypertext systems, Interactive multimedia