"Ctrl+C" is a keyboard shortcut commonly used in computer applications to copy selected text or objects. When you press the "Control" key and the "C" key simultaneously, the highlighted content is stored in the clipboard, allowing you to paste it elsewhere using another shortcut, "Ctrl+V." This function is widely supported across various operating systems and software, including Windows, macOS, and Linux. It simplifies the process of transferring information, making it easier to duplicate data without retyping or recreating it manually.