English: David Durand demonstrated the FRESS (File Retrieval and Editing SyStem) hypertext system at the 'Half-Century of Hypertext at Brown' Symposium, 23 May 2019, Brown University, Providence RI. The projection screen shows two text window views of a hypertext poetry corpus created as an NEH funded educational technology experiment in 1976. The left window shows a view of an index, the right window shows the text of one section of the poetry corpus. FRESS development started in 1968 as the successor to the HES (Hypertext Editing System) software created by Prof Andy van Dam, Brown University, Ted Nelson, and a team of Brown students. FRESS was used at Brown and several other organizations for educational hypertext and document production through the late 1970's. Durand and Steven DeRose recovered the original source code and a corpus of FRESS documents for the ACM Hypertext '89 conference and offered live demonstrations using emulator technology they developed. Tyler Schicke worked with Durand to develop a new version of the emulator (shown in this photo) for a Computer History Museum event in 2018. See the FRESS Wikipedia page for details.