Software refers to a collection of instructions, data, or programs used to operate computers and perform specific tasks. It encompasses a broad category that includes applications, operating systems, and various programs that enable users to complete tasks or facilitate hardware functionality. Software is categorized into two main types: system software, which includes the operating systems and utility programs that manage and control hardware (e.g., Windows, macOS, Linux), and application software, which consists of programs that perform specific user-oriented tasks (e.g., word processors, web browsers, games). Software can be proprietary or open-source, and it can be designed for various platforms, including personal computers, mobile devices, and servers. In essence, software acts as the intermediary between users and hardware, allowing users to execute commands and processes efficiently.