C File I/O
C File I/O refers to the set of standard library functions in the C programming language for performing input and output operations on files, such as reading from and writing to text or binary files. It includes functions like fopen, fclose, fread, fwrite, fscanf, and fprintf, which allow developers to manage file streams and handle data persistence. This concept is fundamental for applications that require data storage, configuration management, or logging.
Developers should learn C File I/O when working on system-level programming, embedded systems, or any C-based project that needs to save or load data from files, such as configuration files, logs, or binary data. It is essential for tasks like reading user input from files, writing output to disk, or implementing custom data formats, providing low-level control over file operations without relying on external libraries.