"Best" is often a matter of opinion, and can be highly subjective. Mac OS X, Solaris 10, AIX,and z/OS are the only major certified Unix operating systems still under development. Mac OS X is the most popular Unix desktop, and Solaris 10 is the most popular one on large servers.
the most popular operating system multitasking is kernel
LINUX, SOLARIS, AIX...etc.
UNIX is a command-based OS. In contrast, Windows is a menu-based OS.
Windows, Unix, Mac OS
Yes Mac OS is based on Linux
Mac OS X is based on UNIX.
Commands you use in a Unix based computer OS to achieve certain things. Similar to MS/DOS commands in Windows. Mostly used in computers running the Linux OS. unix command
Yes
No it is not. The OS is Unix-based, and it is a closed-source design.
No difference, really. Unix is an OS (Operating System)
"Linux" as a operating system distribution (which includes the kernel as created by Linus Torvalds), was in some way influenced by Unix (this includes Apple's Mac OS and OS X, which was based on BSD, which was derived from Unix) at some point in their development.
Mac OS X is pronounced Mac OS Ten. It follows on from Mac OS 9 which was the last version of what is now known as the classic Mac OS and it saw the introduction of the new UNIX based OS so the Roman numeral X was adopted to mark the change.
unix.
kernel is everything in unix os