PURPOSE: To allocated a specific memory by selecting either one of a text memory or a work area, by constituting the titled electronic equipment so that one of plural memory areas can be designated by designating a first address and also selecting a bank, and also, a specific memory area can be designated by designating a second address.

CONSTITUTION: The titled electronic equipment has plural memory areas to which each bank is allocated in accordance with the first address, and also, allows a specific memory area in plural memory areas to correspond directly to the second address, and constituted so that one of plural memory areas can be designated by designating the first address and also selecting the bank, and the specific memory area can be designated by designating the second address. For instance, the output port H3 of a latch 1 is connected to the address port A12 of RAMs 4W11, one RAM is divided into two areas and used, 16 pieces of memory banks are allocated to TXT0WTXT15, respectively, and they are switched and used.