DATA COMMUNICATION TERMINAL EQUIPMENT AND DATA COMMUNICATION SYSTEM

摘要

PURPOSE:To efficiently change an operation program for a data communication terminal equipment by receiving the operation program for executing a specific function from a host device in accordance with the operation program included in the data communication terminal equipment for controlling I/O and communication and storing the received program in a storage means. CONSTITUTION:An automatic playing control device 4 for controlling I/O and communication receives the operation program for executing the specific function from the host device 2 in accordance with the operation program stored in a program ROM and stores the received program in a RAM to execute automatic playing control. In the case of changing a sound source module 1 in a playing terminal or increasing the version of a program, labor for individually setting up the program ROM 11 in the device 4 in each time can be saved. Consequently, the operation program of the device 4 can be efficiently executed.