A TextEditor From the DecFamily of TextEditors.
Author: Digital Equipment Corp. Homepage: Family: DecFamily Platform: RT-11 License: Commercial
It is a predecessor of the famous EDT editor. I believe it originated the use of the keypad in the manner now famous in EDT.
It is the standard editor on DEC RT-11 operating system.
I believe KED was replaced on either Vax/VMS or RSTS-E or RSX-11m+