Microsecond
Microsecond
Microsecond (pronunciation: /ˈmaɪkrəʊˌsɛkənd/) is a unit of time equal to one millionth (10-6 or 1/1,000,000) of a second. Its symbol is μs, from the Greek letter mu (μ), which stands for micro in the International System of Units (SI).
Etymology
The term "microsecond" is derived from the Greek μικρός (mikrós), meaning "small", and the Latin secunda, meaning "second". The prefix "micro-" is used in the metric system to denote a factor of 10-6.
Related Terms
- Nanosecond: A unit of time equal to one billionth of a second (10-9 seconds).
- Millisecond: A unit of time equal to one thousandth of a second (10-3 seconds).
- Second: The base unit of time in the International System of Units (SI).
- Minute: A unit of time equal to 60 seconds.
- Hour: A unit of time equal to 60 minutes or 3,600 seconds.
- Day: A unit of time equal to 24 hours or 86,400 seconds.
Usage
In computing and telecommunications, the microsecond is commonly used. For example, the speed of reading and writing to random access memory (RAM) is often expressed in microseconds.
In physics and engineering, microseconds are used in high-speed and high-precision experiments, measurements, and processes. For example, the speed of light can be expressed as approximately 300 meters per microsecond.
External links
- Medical encyclopedia article on Microsecond
- Wikipedia's article - Microsecond
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