MacOS offers the UNIX features of Linux combined with the 'professionality' of Windows. A Mac generally comes with fairly powerful hardware, which is important for any development machine, and might make an observer think is OS is the good part. However, I remain a die-hard Linux junkie. The Windows operating system is four times more popular than the Mac operating system. Software developers obviously want to cater to the largest market in order to sell the most amount of software copies possible. It is because of this very reason that Windows, has much more applications available to it than the Mac operating system. Windows: Which OS Really Is the Best? When it comes to performance, usability, security, and specific tasks, which of the two leading desktop operating systems reigns supreme? The Finder and many other apps in macOS support tabbed windows—all windows have tabs enabled by default. Bottom Bar In rare cases, a window may include a bottom bar that resides below the body area and includes controls for affecting the content of the window.