Definitions for "Key Sequence"
A key sequence is a sequence of characters used to issue, or partly issue, an editor command. A single key sequence usually involves holding down one of two specially defined keys (i.e. Ctrl and ), while at the same time pressing another key which is usually a character key.
a nonprintable character not displayed on the screen
a series of keyboard keystrokes, mouse actions, or menu actions that is bound to an Emacs command
A set of instructions for performing a particular calculation or function with a calculator.