| 摘要 |
PURPOSE:To attain radio communication between plural POS units by providing each of a master POS unit and slave POS units with a radio communication equipment. CONSTITUTION:A POS (Point Of Sales) system is provided with the master POS unit 1 and plural slave POS units 6 and the master POS 1 is constituted of mutually connecting a processor 2, a main storage device 3 consisting of a random access memory(RAM) and a communication mechanism equipment 4. Similarly to the master POS 1, each slave POS 6 is constituted of mutually connecting a processor 7, a main storage device 8 consisting of a RAM and a communication mechanism device 9. The radio communication equipments 5, 10 are respectively connected to the device 4 in the master POS 1 and the device 9 in the slave POS 6 and communication between the master POS 1 and the slave POS 6 is executed by radio waves through respective equipments 5, 10. |
