Which keyboard shortcut is commonly used to undo an action?

The commonly used keyboard shortcut to undo an action is Control Z. This shortcut is widely recognized across various software applications, making it a standard command that users can rely on to revert their most recent action. When you press Control Z, it backtracks the last change you made, which can be especially helpful when editing documents, images, or code, allowing for quick corrections without having to manually redo everything.

The prevalence of this shortcut is due to its intuitive nature—it's easy to remember and provides a swift way to manage errors or unintended changes. Other keyboard shortcuts like Control Y typically correspond to the redo function, while Control X is associated with cutting selected content from a document, and Control Q is often a command to quit applications. Understanding these shortcuts can enhance efficiency and ease of use while working on computers.