POS system, POS system control method, and recording media processing system

摘要

A host device includes an application unit that outputs a first command or a second command, a receiving unit that receives the output first command or second command, a command control unit that converts the received first command to a third command, and converts the second command to a fourth command, and a host communication unit that transmits the converted third command or fourth command. A device includes a device reception unit that receives the third command or fourth command, a first operating unit that performs the first operation based on the third command, and a second operating unit that receives the fourth command and performs the second operation.

主权项

1. A POS system comprising:
a host device including
an application unit that outputs a first command that performs a first operation on a medium to a first communication port, or a second command that performs a second operation different from the first operation to a second communication port,a receiving unit that receives the first command or second command output by the application unit, the first command or the second command being received by the receiving unit before being received by the first communication port or the second communication port,a command control unit that converts the first command received by the receiving unit to a third command, or converts the second command to a fourth command, anda host communication unit that transmits the third command or fourth command output from the command control unit to a third communication port; and a device including
a device communication unit that receives the third command or fourth command,a first operating unit that performs the first operation based on the third command, anda second operating unit that performs the second operation based on the fourth command.