A screen reader is a software application that helps individuals with visual impairments access digital content. It converts text displayed on a screen into synthesized speech or braille, allowing users to navigate websites, documents, and applications. Screen readers are essential tools for promoting accessibility and inclusivity in technology. Common screen readers include JAWS, NVDA, and VoiceOver. These programs can read aloud text, describe images, and provide information about the layout of a page. By using keyboard shortcuts, users can efficiently interact with their devices, making it easier to perform tasks and access information online.