The problem with Ted Nelson is that he is way too self-centered. And people with that attitude just cannot convince others.
1945 Vannevar Bush (Science Advisor to president Roosevelt during WW2) proposes Memex. 1965 Ted Nelson coins the word "Hypertext" 1967 Andy van Dam et al build the Hypertext Editing System and FRESS 1968 Doug Engelbart demos NLS system at FJCC 1975 ZOG (now KMS) at CMU. 1978 Aspen Movie Map, first hypermedia videodisc, MIT. 1984 Filevision from Telos: hypermedia database for Macintosh 1985 Symbolics Document Examiner, Janet Walker. 1985 InterMedia, Brown University, N. Meyrowitz 1986 OWL introduces Guide, first widely available hypertext 1987 Apple introduces Hypercard, B. Atkinson. 1987 Hypertext'87 Workshop 1990 ECHT (European Conference on HyperText)
Hypertext is text which is not constrained to be linear. Hypertext is text which contains links to other texts. The term was coined by Ted Nelson around 1965 (see History ).
HyperMedia is a term used for hypertext which is not constrained to be text: it can include graphics, video and sound , for example. Apparently Ted Nelson was the first to use this term too.
Hypertext and HyperMedia are concepts, not products.