Patent ID: 6415351
Filing Date: 2002-07-02
Classification: G06F,Y02D

Abstract:
An electronic apparatus comprising:storage means for storing a first program connecting means for connecting a memory medium which stores a second program; control means for controlling an operation of the electronic apparatus by carrying out one of the first program and the second program in accordance with memory maps having at least addresses of the storage means and the memory medium logically arranged; and interchanging means for interchanging the addresses of the storage means and the memory medium in accordance with the memory maps so that one of the first program and the second program is selectively read out and is supplied to the control means, wherein the interchanging means includes mode setting means and mode changing means, the mode setting means for setting an allocation of the addresses of the storage means and the memory medium on the memory maps when turning a power of the electronic apparatus on, the mode changing means for changing the allocation of the addresses on the memory maps after the power is turned on, and wherein the second program is downloaded from the memory medium when turning a power of the electronic device on and when the mode setting means sets an address switching mode, and the first program is downloaded from the storage means, after the second program is downloaded, by the control means causing the mode changing means to change the address switching mode to a regular mode so as to interchange the address of the storage means and the address of the memory medium on the memory maps.