The most commonly used computer operating system is Microsoft Windows. It dominates the personal and professional computing landscape, powering a significant percentage of desktops and laptops worldwide. Known for its user-friendly interface and extensive software compatibility, Windows has various versions tailored for different use cases, including home users, enterprises, and developers. Its widespread acceptance has also led to a large community of developers creating applications, tools, and resources that further enhance its functionality. As of recent statistics, Windows has maintained a market share that consistently ranges around 70-80%, making it a key player in the operating systems market.