Patent ID: 7502012

Claim:
A personal computer comprising a stick-type coordinate input device having an operating member, a distortion sensor for detecting a tilted operation of the operating member, a pressure sensor for detecting a pressing operation of the operating member as an input means, and a keyboard, wherein an output of the pressure sensor is connected to an input/output (I/O) to which the keyboard is connected, the pressure sensor comprising an electrical switch including a first contact piece and a second contact piece, the personal computer having a central processing unit and being capable of operating in any one operating state among a normal operating mode and at least one kind of power saving mode having lower power consumption than the normal operating mode, wherein the distortion sensor operates based on actuation of the clock oscillator, wherein the pressure sensor outputs an operational signal to the central processing unit regardless of the operation of a clock oscillator, and wherein the power saving mode is switched to the normal operating mode by the pressing operation of the operating member.