For the English word "fress" derived from Yiddish, see
List of English words of Yiddish origin. The File Retrieval and Editing SyStem, or FRESS, was a
hypertext system developed at
Brown University in
1968 by
Andries van Dam and his students, including
Ted Nelson and
Bob Wallace. FRESS was a continuation of work done on van Dam's previous hypertext system,
HES, developed the previous year. FRESS ran on an
IBM 360-series mainframe running
VM/CMS. It implemented one of the first virtual-terminal interfaces, and could run on various terminals from dumb typewriters up to the
Imlac PDS-1 graphical
minicomputer. On the PDS-1, it supported multi-window
WYSIWYG editing and graphics display. Notably, the PDS-1 used a lightpen rather than a mouse, and the lightpen could be "clicked" using a cathartic foot-pedal.
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