Hexadecimális

Hexadecimális is the Hungarian term for hexadecimal, a positional numeral system that uses base 16. This means it has 16 distinct symbols. It is commonly used in computer science and digital electronics because it provides a more human-readable representation of binary-coded values than pure binary.

The hexadecimal system uses the digits 0 through 9, the same as the decimal system. However, to represent values beyond 9, it also uses the letters A, B, C, D, E, and F. Each of these letters corresponds to a decimal value: A represents 10, B represents 11, C represents 12, D represents 13, E represents 14, and F represents 15.

One of the main advantages of hexadecimal is its direct relationship with binary. Each hexadecimal digit can represent exactly four binary digits (bits). For example, the hexadecimal digit F represents the binary number 1111, and the hexadecimal digit 3 represents 0011. This makes it easy to convert between hexadecimal and binary, which is crucial for understanding and debugging low-level computer operations.

Hexadecimal is frequently used to represent memory addresses, color codes in web design (e.g., #FFFFFF for white), and data in various programming contexts. Its compact nature compared to binary, while still maintaining a clear link to the underlying bits, makes it a practical choice for many technical applications.