Hotkeys are keyboard shortcuts that allow users to perform specific actions quickly without using a mouse. By pressing a combination of keys, such as Ctrl + C to copy or Ctrl + V to paste, users can enhance their efficiency while working on computers. These shortcuts are commonly used in various software applications, including word processors and web browsers. Many operating systems, like Windows and macOS, have built-in hotkeys that help streamline tasks. Users can also create custom hotkeys for frequently used commands, making it easier to navigate and manage their workflow. Overall, hotkeys are valuable tools for improving productivity.