What are the 4 types of binary code?

Another category of binary codes encompasses alphanumeric codes, which extend the concept of binary representation to include not just numbers but also letters and symbols. These codes are essential for encoding text and other forms of data in digital systems.

Excess-3 code is a special type of binary code used in digital systems to represent both positive and negative numbers, including zero. It adds a bias of 3 to the binary representation of each number, ensuring that no two-bit patterns are identical for positive and negative values, simplifying arithmetic operations.

Gray code, on the other hand, is a binary numeral system where two successive values differ in only one bit. This property makes Gray code particularly useful in minimizing errors in digital systems where the value being represented changes frequently, such as in rotary encoders or digital counters.

Binary codes are a fundamental aspect of digital systems, allowing for the representation of information in a series of zeros and ones. Among the various types of binary codes, the BCD (Binary-Coded Decimal) code, also known as the 8421 code, stands out for its simplicity and wide application.

The BCD code assigns a unique four-bit binary number to each decimal digit, ranging from 0000 (binary) for decimal 0 to 1001 (binary) for decimal 9. This straightforward mapping makes BCD code ideal for applications requiring direct conversion between decimal and binary representations.