SYSTEM DUPLICATION DEVICE AND METHOD

摘要

The system for performing continuous information exchange service among different kinds of terminals, comprises dual port memory (41) connected with a system bus (33), system bus connecting means (43); sub-control means (46) connected with the memory (43) and the means (43); program memory means (42) connected with the means (43); program memory means (42) connected with the means (46); first duplex control means (3) provided with parallel communication channel means (47); second duplex control means (8) for communicating with the means (3) and connecting with system bus (34).