A new concept of computer system is provided to relax stresses such as fatigue, VDT syndrome, occupational diseases or psychogenic possibly gained from long hours of computer usage. This new computer system is able to divert the negative effects of conventional computer to affirmative effects by introducing the aroma therapy. The new computer system provides not only the data programs of establishing, playing execution and controlling, but also the stress relief program comprising acoustic therapy, color therapy, fragrance therapy and tactual therapy and a stress perception program. The stress relief program is operated by an emission device through a converter. The equipment of the stress relief is installed on a peripheral device of computer such as a speaker, keyboard or monitor. The new concept of computer system for stress relaxation originates a combination of the computer system and the natural therapies applied the human senses like sight, hearing, feeling and smelling senses. With this new computer system, the computer user has a merit of stress relief during the computer operating.