> Terminal may be using some kind of Readline Terminal.app passes the key sequences to the application running inside of the terminal. The default shell (bash)

> Terminal may be using some kind of Readline Terminal.app passes the key sequences to the application running inside of the terminal. The default shell (bash) uses GNU readline, which has an emacs-mode and a vi-mode (emacs is the default). Terminal.app does not use any Cocoa text fields, so has nothing to do with the Emacs keybindings inherited from NeXTSTEP.