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A binary number is a number expressed in the base-2 numeral system, using only two symbols: 0 and 1. Learn about the origins and applications of binary numbers in various cultures and fields, from ancient Egypt and China to modern computers and cryptography.
Binary code is a system of representing text, instructions or data using two symbols, usually 0 and 1. Learn about the origin of binary code, its applications in computing and telecommunications, and other forms of binary code such as Braille and bagua.
Binary-coded decimal (BCD) is a binary encoding of decimal numbers where each digit is represented by a fixed number of bits, usually four or eight. Learn about the different types of BCD, their advantages and disadvantages, and their applications in computing and electronic systems.
A ternary numeral system is a place-value system with three digits: 0, 1, and 2. Learn how ternary differs from binary and decimal, how to convert between bases, and how ternary is used in computers and logic.
A comprehensive overview of different writing systems for expressing numbers, with examples, names, bases, and approximate dates of origin. Learn about the history and features of various numeral systems, such as Roman, Indian, Chinese, and Arabic.
Quaternary is a numeral system with four as its base, using the digits 0, 1, 2, and 3. Learn about its properties, conversion from binary, relation to other bases, and examples of quaternary numbers.
A given mathematical symbol in the source code, by operator overloading, will invoke different object code appropriate to the representation of the numerical type; mathematical operations on any number—whether signed, unsigned, rational, floating-point, fixed-point, integral, or complex—are written exactly the same way.
Learn about different binary codes that represent text as a sequence of binary digits "0" and "1". Compare fixed-width and variable-width codes, and see examples of five-, six-, seven-, eight-, and 16-bit codes.