An electronic circuit generating an oscillating electronic signal at regular intervals usually a sine wave or a square wave is called an oscillator circuit. Oscillators are generally used to convert direct current (DC) from a DC power source to an alternating current (AC) signal. They find application in many electronic devices generally broadcasting and transmitting equipment. Signals produced by oscillators are used to broadcast by radio and television transmitters. Oscillators are also used in computers and quartz clocks to generate clock signals for operation.