An integrated computer system includes a computer system, having at least
a display, a chassis, a memory, a power supply and a communication
interface, and a personal digital communications (PDC) system, having at
least a display, a memory, a battery and a communication interface. The
computer chassis is configured to removably retain the PDC system in a
docked mode, and when in said docked mode the PDC system is operable to
communicate with the computer system through the respective communication
interfaces and the computer system is operable to send data from the
computer memory to the PDC system. The PDC system is operable to receive
said data and store said data in the PDC memory and to display at least a
subset of said data on the PDC display when the computer system is
powered on or off.