DATA PROCESSING SYSTEM WITH DISPLAY AND USER INPUT DEVICE

摘要

A two-way activator or two-way switch is provided for the control of electronic media presentations through user-interactive computer controlled display interfaces. The operation of the switch control is dependent on the duration of time of the user input to the two-way switch. In response to an input of a first time duration to the switch, the system being controlled performs a first function. Then, responsive to an input of a second time duration, the system performs a function which is different in kind from the first function.