To diversify processings corresponding to input and to perform the various processings by excellent operability by collating the set of an inputted input signal string and a signal interval with pattern data and executing the processing contents of correspondent processing data corresponding to the pattern data.

Key input by an operator is performed through an input means 2 and a measurement means 3 measures the interval of the inputted key input. A storage means 4 stores information required to be stored in terms of the operation of an information processor and the information includes the one related to the combination of a 'key input pattern' as the pattern data and a 'series of the processings corresponding to the key input pattern' as the corresponding processing data as well. A control means 5 collates the series of the key input with the 'key input pattern' stored in the storage means 4 and executes the corresponding 'series of the processings corresponding to the key input pattern' in the case that the key input matches the 'key input pattern'.