electrónicos

In a sentence

• Tengo varios dispositivos electrónicos en mi casa.

  I have several electronic devices in my house.

  Here, 'electrónicos' is used as an adjective to describe 'devices', indicating that they operate based on electronic technology.

• Los electrónicos modernos son muy avanzados.

  Modern electronics are very advanced.

  In this instance, 'electrónicos' is a noun referring to electronic items or components collectively.

• Estudiamos los principios de los sistemas electrónicos en la universidad.

  We study the principles of electronic systems at the university.

  Here, 'electrónicos' is an adjective modifying 'systems', specifying that the systems function electronically.