Anti-ghosting is a feature of keyboards that allows multiple simultaneous keystrokes to be recorded flawlessly. This feature is essential for gamers and professional users who require fast and accurate inputs, for example for using complex keyboard shortcuts. "Ghosting" occurs when multiple keys are pressed simultaneously and the keyboard is unable to correctly record each press, which can lead to incorrect or unrecorded input. Anti-ghosting keyboards are designed to prevent this problem. They use advanced circuit designs or individual diodes for each key, this ensures that every keystroke is correctly and reliably registered no matter how many keys are pressed simultaneously.