Final answer:
The Unicode value , also known as the null character, represents a control character used to denote the end of a string in programming.
Step-by-step explanation:
The Unicode value , also known as the null character, represents a control character that is used to denote the end of a string in programming. It is commonly used in programming languages to indicate the absence of a value or to terminate a string. The null character has a value of 0 and is different from the printable ASCII characters.