The term binary computer may refer to a "classical" computer, meaning "not" a quantum computer. See quantum computing. Previously, mechanical computing devices were based on the decimal system.

Binary is a number system that only uses two digits, \(0\) and \(1\). It was invented by German mathematician Gottfried Wilhelm Leibniz. Binary code is used widely in computer programming ...

the type of number being read: binary, packed decimal, zoned decimal, or a variation of one of these the type of system on which the data was created the type of system that you use to read the data.