 The Return key was located in a more standard location and was used to generate a new line.Apple also took advantage of this situation to create an editable command line environment called a "Worksheet" in the Macintosh Programmer's Workshop, where return was used strictly as a formatting key while enter was used to execute a shell command or series of commands in direct mode.In technical terms, the Macintosh keyboard maps the return key to a carriage return, while the enter key maps to a newline.