A network system, a network server and a terminal device, for of easily and surely
transmitting various information to a user being the destination of the information,
wherein the terminal device to be used by a user is recorded in the network server
22, and the network server 22 converts information to be transmitted
to the terminal device used by the user into information conformed to the terminal
device used by the user, or transmits a notice to the terminal device to the effect
that there is information to be transmitted to said user. Thereby, the information
can be easily and surely transmitted to the user who is the destination of the information.
