Single-byte character set
A single-byte character set (SBCS) is a character encoding that uses exactly one byte for each graphic character. A SBCS can accommodate a maximum of 256 symbols, and is useful for scripts that do not have many symbols or accented letters, such as the Latin, Greek, and Cyrillic scripts used mainly for European languages.
Source: Wikipedia — Single-byte character set (CC BY-SA 4.0)