Which one of the following is a popular operating system
Operating systems such as the UNIX operating system were first developed in the 1960s and have gone through constant development ever since.UNIX is a powerful Operating System initially developed by Ken Thompson, Dennis Ritchie at AT&T Bell laboratories in 1970. The operating system is the set of programs that make the computer run. Servers, desktops, and laptop computers can all run it because it is stable, multi-user, and multi-tasking. As with Microsoft Windows, UNIX systems provide an easy-to-use graphical user interface (GUI).
The market offers a variety of Unix variants. A few examples are Solaris Unix, AIX, HP Unix, and BSD. You can also download Linux for free. A Unix computer can be used by multiple people at the same time, which is why Unix is known as a multiuser operating system.Unix also allows the user to run multiple programs simultaneously; thus, it is a multitasking environment.