perm filename EDITOR[3,2]3 blob sn#195979 filedate 1976-01-15 generic text, type T, neo UTF8
There are several kinds of text editors available here.
E is the display editor in current favor.
SOS is teletype oriented.  If you will be using the display
facilities at the lab, learn E.

To learn E, use the monitor command: HELP ETEACH

SOS is described in SOS.LES[S,DOC], and briefly by HELP SOS