' mesin hitung, kalkularor, mesin fotocopy, pesawat telepon, telepon genggam (hand phone), antenna, computer, perala tan dan perlengkapan computer, CPU, monitor, keyboard, bagian-bagian dalam CPU (software), fitting listrik, stop kontak listrik, step up/step down listrik, stabilisator listrik, stavolt, amperemeter, stop kontak amperemeter, sekring lsitrik, seterika listrik, Tape, radio tape, televisi/TV, amplifier, speaker aktif, ,VCD/CD/DVD/LD Player, audio visUal, pesawat video, ill (handy talky), kas registet