1. An apparatus, comprising: one or more operational components configured to sense a user input related to at least one or more movements, one or more touches of an other hand of the user, one or more gestures, and one or more poses or an area pointed by a hand; a memory configured to store a plurality of processor-executable sets of instructions corresponding to a plurality of applications; a processor communicatively coupled to the one or more operational components and the memory, the processor configured to perform operations comprising: analyzing the user input; and performing one or more operations responsive to the user input; and a casing containing the one or more operational components, the memory and the processor therein, wherein each of the one or more movements, the one or more touches of the other hand of the user, the one or more gestures, and the one or more poses is performed without reference to or contacting a touch-responsive device, a touch-sensing device or a display device.