EarlyEditorFamily

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* ZED-DOC - Editor written in TECO by Vaughan Pratt

* ZED-DOC - Editor written in TECO, and later in Mock-Lisp, by Vaughan Pratt

Test editors in this family were the early efforts in development that resulted in modern computer text editors

BRAVO - Early screen editor from Xerox PARC
Colossal Typewriter - One of the earliest computer text editors, on a DEC PDP-1
EDIT4 - A very early line editor for the PDP8 from Edinburgh University
Editing MACroS - RMS's original emacs, written in TECO under ITS
Expensive Typewriter - DEC PDP-1 text editor that was arguably the first word processor
Gypsy - Commercial text editing system from Xerox PARC, based on BRAVO
TVEDIT - Early (1962) video text editor at Stanford University
ZED-DOC - Editor written in TECO, and later in Mock-Lisp, by Vaughan Pratt