gigahertz
Definition
Noun A unit of frequency equal to one billion (10⁹) hertz or cycles per second. It is commonly used to measure the clock speed of computer processors and the frequency of radio waves.
Usage
The term "gigahertz" is used to specify very high frequencies, particularly in electronics, computing, and telecommunications. It is often abbreviated as GHz.
Examples
- The new processor runs at a speed of 3.5 gigahertz.
- This microwave oven operates at a frequency of 2.45 gigahertz.
- The radio band for Wi-Fi 6 uses the 5 gigahertz and 2.4 gigahertz spectrums.
Advanced Usage
- Technical Specification: In technical contexts, "gigahertz" precisely quantifies the oscillation rate of a signal. A higher gigahertz number in a CPU often indicates the potential for faster processing of instructions.
- Example: The satellite transmits data on a carrier wave of 12 gigahertz.
Variants and Related Words
- Hertz (Hz): The base unit of frequency, equal to one cycle per second.
- Megahertz (MHz): A unit of frequency equal to one million (10⁶) hertz.
- Kilohertz (kHz): A unit of frequency equal to one thousand (10³) hertz.
Synonyms
- GHz (the standard abbreviation)
- Cycles per second (an older, equivalent term, though "hertz" is now standard)
Notes on Meaning
The meaning of "gigahertz" is highly specific and technical. It does not have idiomatic uses or different meanings in everyday language. Its primary function is as a precise unit of measurement in science and engineering.
Noun
-
1,000,000,000 periods per second
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