Screen capture is a technology that allows users to take a snapshot of their computer or mobile device screen. This can include images of open applications, websites, or any visible content. Screen captures are useful for creating tutorials, sharing information, or documenting issues. There are various tools and software available for screen capture, such as built-in features in operating systems like Windows and macOS, as well as third-party applications like Snagit and Greenshot. Users can often choose to capture the entire screen, a specific window, or a selected area, making it a versatile tool for visual communication.