| 摘要 |
PURPOSE:To effectively use the function of a CPU, by providing a function excluding the processing request of a job which is impossible for the processing by the CPU. CONSTITUTION:A CPU transmits control information indicating processable job to each terminal device. At each terminal device, the information is received at an interface controlling section 1, and the controlling section 1 transmits the information to a control information detecting circuit 2 and a data storage section 7. The circuit 2 detects and picks up the control information from the transmitted data and transmits it to a control information storage section 3. On the other hand, a code indicating a job requesting processing is inputted from an input section 4 and it is transmitted to a comparison circuit 5 and a storage section 7. The circuit 5 refers to the table in the storage section 3 and a signal indicating whether the job can be processed or not is given to a main control section 6. The input processing data stored in the storage section 7 is transmitted to the CPU via the control section 1 only when the result of comparison at the circuit 5 is discriminated that it is possible for the job processing. |
