A GHz is a unit measuring one cycle operating at one billion times per second, while a Mg is a unit measuring weight. GHz is used in electromagnetic spectrums and measuring computer clock speed. The megagram, or ton, is used in agriculture, industry, and engineering. Both units derive from Greek words meaning “giant” and “large” respectively.
According to the International System of Units, the modernized form of the metric system, a GHz is a gigahertz, i.e., one cycle operating at one billion times per second, while a Mg is a megagram, the official designation for a ton, called a ton, equivalent to 1000 kilograms. So a GHz and a Mg refer to units that measure fundamentally different things: the rate of a cycle and weight.
The unit GHz is commonly used in the study of electromagnetic spectrums, whose light with a frequency of one GHz falls in the microwave portion of the spectrum, with a wavelength of about 20 cm, and in measuring the clock speed of computers , which is often a few GHz. Contrary to popular belief, a computer’s clock speed is not directly related to its computational performance. This misconception has been called the megahertz myth. As of 2008, the best personal computers operate at a clock speed of around 3GHz. This is sure to increase to 10GHz and beyond in the coming years as faster computers are built to meet consumer demand. Some molecular vibrations are in the GHz range.
The megagram, or ton, is 1000 kilograms or about 2205 pounds. This unit is used to measure quantities in agriculture, industry, petrochemical mining, structural engineering and many other fields. The Empire State Building has an estimated weight of 336,000 tons, while the International Space Station will weigh 471 tons upon completion. A car weighs around 1-2 tons, while an elephant weighs 3-12. The Hubble Space Telescope weighs 11 tons. It costs about $14 million to launch a ton of material into space.
The “gig” in gigahertz and the “mega” in megagram both derive from Greek words meaning “giant” and “large” respectively. When used in the SI system of units, “mega” indicates one million, while “giga” indicates one billion. Other even larger SI prefixes include tera-, meaning one trillion, and peta-, meaning one quadrillion.
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