Electronic ordering, computing and bill-printing system

Claim 1

IN COMBINATION IN AN ORDERING, PRICE COMPUTING AND INDICATING SYSTEM, A COMPUTER INCLUDING A PLURALITY OF BIDIRECTIONAL RING COUNTER DEVICES ONE FOR EACH OF A NUMBER OF ITEMS OF PREDETERMINED PRICE AVAILABLE FOR ORDERING, EACH RING COUNTER DEVICE BEING ADAPTED TO PRODUCE AND STORE AN OUTPUT VOLTAGE REPRESENTING THE QUANTITY INFORMATION FOR ITS PARTICULAR ITEM BEING ORDERED AND HAVING A TRIGGER CIRCUIT WITH AN ADD SWITCH AND A SUBSTRATE SWITCH FOR ENTERING AND REMOVING ONE OF ITS ITEMS RESPECTIVELY EACH TIME THE SWITCHES ARE CLOSED AND A PLURALITY OF ORDERING KEYS EACH CONNECTED TO ONE OF THE SWITCHES FOR CLOSING SUCH SWITCH WHEN MANUALLY OPERATED, A BINARY TO DECIMAL CONVERTER CONNECTED TO ALL OF THE COUNTER DEVICES AND CONTROLLED TO RESPOND ON A TIME SHARING BASIS TO THE RESPECTIVE OUTPUT VOLTAGES THEREFROM OF A SINGLE ORDER FOR CONVERTING THE OUTPUT VOLTAGES TO RESPECTIVE TRAINS OF PULSES IN NUMBER RESPECTIVELY REPRESENTING THE TOTAL PRICE OF THE TOTAL NUMBER OF EACH ITEM ORDER, A PLURALITY OF INDICATORS EACH CONNECTED TO ONE OF THE COUNTER DEVICES AND RESPONSIVE TO THE QUANTITY INFORMATION STORED THEREIN TO INDICATE THE TOTAL NUMBER OF SUCH ITEM TO BE ORDERED AND TO REMOVE SUCH INDICATION WHEN THE STORED QUANTITY INFORMATION IS PROVIDED TO THE CONVERTER, SCANNING MEANS INCLUDING GATING MEANS CONNECTED TO THE BINARY TO DECIMAL CONVERTER AND TO ALL THE RING COUNTER DEVICES FOR PASSING, WHEN THE GATING MEANS IS QUALIFIED, STORED INFORMATION FROM EACH RING COUNTER DEVICE IN SEQUENCE ON A TIME SHARING BASIS TO THE BINARY TO DECIMAL CONVERTER, COMMAND MEANS CONNECTED TO THE SCANNING MEANS AND OPERABLE TO PROVIDE A START COMMAND SIGNAL TO QUALIFY THE