File I/O

File I/O (Input/Output) refers to the process of a computer reading data from or writing data to storage devices like hard drives or SSDs. When opening a file, the computer can retrieve stored information for use (reading), or save new or modified data in the file (writing). This process allows programs to persist data beyond their runtime, enabling them to store documents, settings, or large datasets efficiently. Proper handling of File I/O is essential for data management, ensuring that information is accurately saved and retrieved as needed.