Persons suffering from intractable disease like ALS (Amyotrophic Lateral Sclerosis) and spinal cord injured present symptoms of muscular deteriorations. These patients are often obliged to use artificial respirators in the case the breathing action becomes impossible. It should be noticed that using the artificial respirator means that uttering voice is impossible. In order to support their daily lives, computerized environment is proposed, where various home electric appliances can be controlled by computer. Furthermore, the computer has original vision input device. A distinct advantage of this computerized environment is that the most of the home electric appliances needs no to be connected by the cables.