High Quality Content by WIKIPEDIA articles! NoteCards was a hypertext personal knowledge basesystem developed at Xerox PARC by Randall Trigg, Frank Halasz and Thomas Moran in 1984. NoteCards developed after Trigg became the first to write a Ph.D. thesis on hypertext while at the University of Maryland College Park in 1983. NoteCards is one of the best known hypertext projects in the research world due to its design being well documented.