Windows 3.0 is an operating system released by Microsoft in May 1990. It was a significant upgrade from earlier versions, introducing a graphical user interface that made it easier for users to interact with their computers. This version allowed multitasking, enabling users to run multiple applications simultaneously, which improved productivity. The system featured enhanced graphics and support for virtual memory, allowing it to run larger applications. Windows 3.0 also included a new program manager and file manager, making it simpler to organize and access files. Its success helped establish Microsoft as a leader in the software industry.