PURPOSE: To save the time and the labor required for collection of information by securing such a constitution where an operator of a work station collects automatically various information held in a designated processor just by inputting a command to stop the operation of the processor.

CONSTITUTION: When a command is inputted from a keyboard 41 to stop the operation of a processor 1, a conversion means 100 converts the input command into a control signal to stop the operation of the designated processor 1 and another control signal to extract various information out of the stopped processor 1 and transmits successively these control signals to the processor 1. A storage means 200 stores those information extracted from the processor 1. An output means 300 outputs those information to a display 42 from the means 200. Thus various information stored in the designated processor 1 are automatically collected just when an operator of a work station inputs a command to stop the operation of the processor 1. As a result, the time and the labor can be extremely saved for collection of information.