Àyọkà yìí jẹ mọ́ nípa pápá ẹ̀kọ́ oníṣẹ́ọnà ti ìṣiṣẹ́oníná. Fún àwọn ẹ̀rọ oníná àdálò, ẹ wo: ẹ̀rọ oníná. Fún the scientific magazine, ẹ wo: Electronics (magazine). Ìṣiṣẹ́oníná tabi Ẹ̀lẹ́ktrónìkì tabi Ẹ̀lẹ́ktrónìksì (Electronics) ni eka isiseeda, iseero ati oroiseona to unda lori awon asoyipo onitanna to ni awon active electrical component|ohuninu onitanna alagbese bi igo adipa, tiransisto, asinameji ati awon asoyipo olodidi, ati awon oroiseona onirele to je mo won. Iwuwa alaije-onigbooro awon ohuninu alagbese ati ilese won lati kojanu isan elektroni je ki isodigbangba amioloro alailagbara o seese be sini o je mimulo si aroye ati igbese amioloro. Bakanna, ilese awon ero-imulo onina lati sise bi switches je ki igbese aroye eleyoika o seese. Awon oroiseona isomorapapo bi awon patako asoyipo, oroiseona ikopo isiseonina, ati orisi iru awon ipile ibanisoro lo so imusise asoyipo di odidi, o si unje ki gbogbo awon ohuninu otooto yi o di sistemu asise. Isiseonina yato si sayensi ati oroiseona onitanna and elero-onina, ti won unda lori imuwaye, ipinka, switching, ifipamo ati iyipada okun onitanna si ati lati awon iru okun miran nipa lilo waya, oko, generators, batiri, switches, relays, transformers, resistors and other passive components.