SI system

Information:

The International System of Units is the modern form of the metric system and is generally a system of units of measurement devised around seven base units and the convenience of the number ten. It is the world's most widely used system of measurement. The older metric system included several groups of units. The SI was developed in 1960. As the SI is not static, units are created and definitions are modified through international agreement among many country. The system has been nearly globally adopted. Three only exceptions are Myanmar, Liberia, and the United States.