The decimal number system.
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The numbers we commonly use are based on the decimal system, which is based on powers of 10. This means each digit's position in a number represents a power of 10. Other number systems include binary (base 2), octal (base 8), and hexadecimal (base 16).
Our numbers (1,2,3 etc) are based on the decimal system, or the base 10 system.
However many other number systems are in common use. Computers use a binary (base 2), octal (base 8) or hexidecimal (base 16). The faces of clocks, the months of the year, degrees in circle and dozens are all based on an old base 12 system of notation.
Fortunately the Mayan system, a vigesimal (base 20 system, has mostly died out. The only exception seems to be the interest in 2012 due to the completion of a baktun (properly b'ak'tun) of 20 katun cycles of the ancient Maya Long Count Calendar used in a recent movie.
The Metric system is based on the number 10 and its multiples, which includes numbers like 100, 1,000, 10,000, etc.
A system of measurement based on ten is known as the metric system. In this system, units are based on powers of ten, making conversions between different units simple and straightforward. The metric system is widely used around the world for its ease of use and consistency.
Decimal refers to the numbering system based on powers of 10, whereas metric is a system of measurement based on meters, grams, and liters as the fundamental units. Decimal can be applied to any numerical system, while metric specifically refers to units of measurement.
Yes, the metric system is based on multiples of 10. Prefixes such as kilo (1000), centi (1/100), and milli (1/1000) are used to represent different magnitudes within the system.
A Knowledge-Based system is one that uses knowledge, reason and logic to solve sometimes complex problems. It is written as a computer program for a system.