Some text editors are small and simple, while others offer a broad and complex range of functionality. For example, machines with Unix-like systems typically use the minmal vi, but many also use the large and feature-rich Emacs to edit text. Microsoft Windows systems use the very simple Notepad program, though many people (especially programmers) use a more complete program like TextPad?.
Well-known editors: ed, edt, edlin, Emacs, pico, qed, Red (an editor for VAX/VMS, written in the Forth variant STOIC), sam?, teco, Vi, VIM.