Permainan elektronik yang dihubungkan dengan layer monitor, TV, pesawat penerima radio, tape recorder, CPU/computer, audio/video untuk computer, mesin bicara, gramophone, rewinder, amplifier, lound speaker, microphone, megaphone, headphone, wireless, VCD/DVD, optic, kaca mata, lensa-Iensa, mikroskop, teropong, teleskop, pesawat komunikasi, telephone, walky talky, handy talky, pesawat telex, pita-pita magnetic, pita cassette, pita video disk recorder, laser disk, piringan hitam, compact disk (audio, video), antena, booster, radar, parabola, accu, kotak accu, baterai, pengisi baterai, batu baterai, kotak baterai, bel listrik, kabel telepon, transformator, travo, ballast, step up, step down, mesin facsimile, computer, pesawat games computer, memory card computer, catridge computer, stick computer, mesin hitung, kalkulator, kas register, mesin teleks, pesawat ukur, speedometer, ampere meter, meteran listrik, volta meter, modem-modem, monitor (program computer), printer computer, stop kontak, sakelar, switch-switch, fiting-fiting, kombinasi fiting, stecter, sonar, seterika listrik, mesin fotocopy, disket, pesawat-pesawat pemadam api, alat solder listrik