Signal

An oscillator is an electronic circuit or device that can convert a steady-state signal into an oscillating signal (sine wave signal). Oscillators are used to generate repetitive electronic signals. An oscillator can convert a steady-state DC signal into a periodic AC signal at a desired frequency.

Electronic devices interact with each other and with the real world through information transfer. Information transfer is done using signals in analog and digital form. Electronic circuits that process any analog signal and provide an analog output are called analog circuits. Electronic circuits that process signals with discrete amplitude, also...