Disket-disket komputer, computer accesories, computer hardware, computer software, piringan computer dan optik disk, program-program computer, radio, televisi, cassette, pita cassette, video, pita video, antenna, antenna parabola, computer-computer, amplifier, loudspeaker, stop kontak, kabel-kabel listrik, transformation, telescop, terminal listrik, sakelar listrik, fiting listrik, timbangan, adaptor, equalizer, tape recorder, boster, crossover, walky, talky, handy talky, laser disk, mikrofon dan accu/baterai