Binary code is a system of representing text, computer processor instructions, or any other data using a two-symbol system, usually "0" and "1" from the binary number system. The binary code assigns a pattern of binary digits, also known as bits, to each character, instruction, etc. For example, a binary string of eight bits (which is also called a byte) can represent any of 256 possible values and can, therefore, represent a wide variety of different items. Binary code is used in computing and telecommunications for various methods of encoding data, such as character strings, into bit strings.

In a binary system, each digit position represents a power of 2, and there are only two possible values for each digit: 0 or 1. Binary code signals are a series of electrical pulses that represent numbers, characters, and operations to be performed. Each decimal number (0-9) is represented by a set of four binary digits, or bits, and the four fundamental arithmetic operations (addition, subtraction, multiplication, and division) can all be reduced to combinations of fundamental Boolean algebraic operations on binary numbers.

Binary code is the most basic form of computer code, consisting of two numbers: 0 and 1. These numbers form the basic layer of all computing systems and are the primary language of digital technologies. Binary code represents information in a format that computers or other electronic devices can understand, interpret, and use. Devices typically organize the code into segments called “bits” or “bytes,” with bits being single digits, either 1s or 0s, and bytes being eight-bit units.

In summary, binary code is a system of representing data using a two-symbol system, usually "0" and "1," and is used in computing and telecommunications for various methods of encoding data into bit strings. It is the most basic form of computer code and is the primary language of digital technologies.