What is the difference between hertz and megahertz

Gigahertz or GHz is the unit of measuring the frequency of cycles completed by a processor per unit time. These periodic cycles are also commonly known as clock speed. The unit Hertz was named after the renowned German scientist Heinrich Hertz.

GHz measures clock speed in billions, thus, one gigahertz is equal to 1,,, hertz. One GHz is also commonly represented as a factor of 10, such that:. It can also be converted into the lower measuring unit of megahertz. The relationship between the two units can be summoned as:. GHz is commonly implicated in measuring the synchronic clock cycle frequencies of CPUs. As gigahertz is indicative of the speed of the processor, the greater the GHz measurement, the faster the computer.

However, there are other factors that affect the speed of a computer including components like software design and disc performance. Hertz is the unit used to measure the number of cycles of an oscillating body. The abbreviation MHz connotes Megahertz. MHz is the unit of measurement used to calculate the frequency of millions of clock time cycles completed per unit time.

Comment Form is loading comments One type of electromagnetic energy that is of increasing importance worldwide is radiofrequency or "RF" energy, including radio waves and microwaves, which is used for providing telecommunications, broadcast and other services.

In the United States the Federal Communications Commission FCC authorizes or licenses most RF telecommunications services, facilities, and devices used by the public, industry and state and local governmental organizations. Because of its regulatory responsibilities in this area the FCC often receives inquiries concerning whether there are potential safety hazards due to human exposure to RF energy emitted by FCC-regulated transmitters.

Heightened awareness of the expanding use of RF technology has led some people to speculate that "electromagnetic pollution" is causing significant risks to human health from environmental RF electromagnetic fields. This document is designed to provide factual information and to answer some of the most commonly asked questions related to this topic.

EMFs are produced by power lines, electrical wiring, and appliances see Question 1. Electric fields are easily shielded or weakened by walls and other objects, whereas magnetic fields are not. Since magnetic fields are more likely to penetrate the body, they are the component of EMFs that are usually studied in relation to cancer see Question 1. Overall, there is limited evidence that magnetic fields cause childhood leukemia, and there is inadequate evidence that these magnetic fields cause other cancers in children see Question 2.

Studies of magnetic field exposure from power lines and electric blankets in adults show little evidence of an association with leukemia, brain tumors, or breast cancer see Question 3.

Past studies of occupational magnetic field exposure in adults showed very small increases in leukemia and brain tumors. However, more recent, well-conducted studies have shown inconsistent associations with leukemia, brain tumors, and breast cancer see Question 4. Granger Morgan, H. One full blink cycle contains both the on and the off state.

An LED that blinks at one Hz would blink on and off every second. An LED that blinks at 1 kHz would blink a thousand times a second - so fast that you would even notice that it was blinking. When building robots, you may be concerned about the speed of the microcontroller's clock ticks, the frequency rate of a PWM signal, or the pitch of a tone being sent to a speaker.