Software accessibility refers to the design and development of software applications that can be used by people with various disabilities. This includes features that support users with visual, auditory, motor, or cognitive impairments, ensuring that everyone can interact with technology effectively. Key principles of software accessibility involve providing alternative text for images, keyboard navigation, and screen reader compatibility. By following guidelines such as the Web Content Accessibility Guidelines (WCAG), developers can create inclusive software that meets the needs of all users, promoting equal access to information and services.