Updated: 12/09/2018 by Computer Hope

Illustration: the frequency of various sine waves.Frequency may refer to any of the following:

1. In general, frequency is a measurement of how often something happens in a period of time. In science and technology, frequency is measured in Hz (hertz).

2. In relation to a CPU, frequency refers to the processor's operational clock cycles per second. The frequency of most modern CPUs is measured in GHz, or billions of cycles per second.

3. A frequency is the number of oscillations in alternating electrical current each second.

4. The term frequency may also refer to cycles per second of an electromagnetic wave, such as a sound wave or a light wave. The frequency of light determines its color, as seen by the human eye. Similarly, the frequency of sound determines its pitch, as heard by the human ear.

Band, Frequency response, Hertz, Power terms, Sound terms, VHF