Tokenless slot machine system

A slot machine system for processing wagers of game media on plural slot machines and accounting gains and losses of the game media without using tokens such as coins or balls, and without using portable memory devices such as magnetically encoded cards, the system comprising:

• (a) a game data processing unit for coordinating the functions of the system and for initializing the system to allow identified plays to wager game media on the slot machines in the system, said processing unit comprising:
• a first keyboard for entering game data including player identification codes and the number of game media credited to the identified player,
• a storage unit for readably writing and storing the game data entered at said first keyboard;
• a printer for printing game data from said storage unit, said printer having means for printing a false player identification code and a correct player identification code on opposing sides of a paper, said printer being capable of providing said paper to the identified player;
• an arithmetic processor connected to said storage unit and to the slot machines in the system, said arithmetic processor having means for:
• (1) comparing game data from the storage unit and from the slot machines in the system,
• (2) enabling operation of a first one of the slot machine sin the system responsive to said means for comparing game data when the player identification code in said storage unit matches the player identification code in said first one of the slot machines in the system and when sufficient game media are credited to the identified player to meet the number of game media wagered by the identified player, and
• (3) updating game media available to identified players based on inputs from slot machines in the system;
• and
• (b) plural slot machines connected to said game data processing unit for wagering game media, each of said slot machines comprising:
• a second keyboard for entering play data including player identification codes and the number of game media to be wagered by the identified player, the number of game media to be wagered not being predetermined by the system;
• wagering means for making a wager and for determining the game media payoff from a wager;
• an operation control unit responsive to said means for enabling operation for enabling operation of the wagering means;
• and
• means for transmitting the payoff from a wager to said means for updating game media.