String search is a process used in computer science to find a specific sequence of characters, known as a substring, within a larger string. This technique is essential for various applications, such as text editing, data retrieval, and programming. Algorithms like Knuth-Morris-Pratt and Boyer-Moore are commonly employed to perform efficient string searches, minimizing the time it takes to locate the desired text. In string search, the goal is to identify the starting position of the substring within the main string. The search can be case-sensitive or case-insensitive, depending on the requirements. String search is fundamental in fields like natural language processing and database management, where quick access to information is crucial.