"binary" refers to something that involves or has two parts or options. It often describes a system or code that uses only two numerical values, like 0 and 1, to represent information. Full definition
It is important to know that trading in binary options in many ways have more in common with poker and sports betting than it does with other types of investment. (thetradepros.com)
Although most are in binary systems, some 30 % are solitary, and their origin is therefore mysterious. (science.sciencemag.org)
Today there are thousands of traders enjoying of trading with binary options robot. (binarysoftware.org)