Video game system having terminal identification data

A video game system for transmitting video game programs from a host to a plurality of terminal devices through transmission lines, the host having a first memory storing the video game programs, each of the terminal devices having a second memory for storing video game programs sent from the host, and a plurality of game units each of which having a display for displaying the video game programs stored in the second memory, the system comprising:

• each of the terminal devices being designated by a terminal device identification data;
• each of the video game programs being constituted by a start packet, a data packet, and an end packet,
• the start packet including a start packet identification code for indicating that the packet is a start packet, at least one first terminal device identification data for identifying the terminal device to which a video game program is transmitted, a game program identification data for identifying the video game program to be transmitted,
• the data packet including a data packet identification code for indicating that the packet is a data packet, and data of the video game program,
• the end packet including an end packet identification code for indicating that the packet is an end packet, and a second terminal device identification data for identifying the terminal device which is to be inhibited from receiving the video game program thereafter,
• the packets being arranged so as to be transmitted in the order of the start packet, data packet and end packet.