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The gigahertz represents 1 billion hertz, used for modern computer processors, microwave ovens, and high-frequency communications.

The hertz is the SI unit of frequency, measuring the number of complete cycles or oscillations occurring per second. Named after physicist Heinrich Hertz.

The kilohertz is a frequency unit representing 1,000 hertz, commonly used in radio broadcasting, audio frequencies, and telecommunications.

The megahertz represents 1 million hertz, widely used in radio broadcasts, wireless communications, and computer processing speeds.

RPM is a practical frequency unit measuring rotational speed, commonly used in engines, motors, and mechanical equipment.

The terahertz represents 1 trillion hertz, used in advanced scientific research, medical imaging, and next-generation communications.