Question

Two text editor programs

Answer 1

A text editor is a computer program that lets a user enter, change, store, and usually printtext. XEDIT , Emacs , vi .

Answer 2

On Unix, Linux systems, there are:   vi, ed.
On windows:  Notepad, Wordpad, turbo edit
on xwindows systems: xedit
Android:   Quick edit  or
IOS:    Text edit