Patent ID: 7308585

Claim:
An apparatus comprising: an electric power button which starts operation of an operating system when input is received from a user; a controller energized in response to user input to said power button and responsive to an input received through a switch other than said electric power button while in one of a plurality of termination states in which the operation of the operating system is terminated; a keyboard including a plurality of keys; a plurality of emission devices which are turned on in response to each-key input while in an operation state where the operating system is started; and an executor, coupled to said controller, which performs a predetermined process while preserving the termination state in which the operating system is in when the input to the switch is accepted by said controller in the termination state in which the operating system is in, wherein the predetermined process performed by the executor is one or more of the group of: indicating the position of said electric power button to the user; lighting a projector for illuminating said keyboard; or indicating a residual amount of the remaining battery capacity by turning on a pre-designated combination of said emission devices.