An information processing apparatus prevents the physical switch operation from being wrongly detected as the tapping operation to thereby cause the intended process to be surely performed. The information processing apparatus has an operation member. The vibration of the information processing apparatus is detected and an operation of the operation member is detected. If the operation of the operation member is not detected by the member operation detecting unit within a predetermined period after the vibration detecting unit has been detected the vibration, a function assigned to the detected vibration is executed, and if the operation of the operation member is detected by the member operation detecting unit within the predetermined period after the vibration detecting unit has detected the vibration, a function corresponding to the operation of the operation member without executing the function assigned to the detected vibration is executed.