Max and Guss come to mind when I think of male dogs.
The most popular one is the Android OS.
the iOS from apple.
Mac-OS=Disk operating system==Linux OS==Windows OS==Unix OS=
Woves are the ansester os dogs
"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.
Linux
Free: the Linux OS Paid: Mac OS X snow Leopard
windows mobile and palm OS
Desktop computers and laptop use the same OS. Microsoft Windows is one popular OS, Macintosh OS X is another, as is Linux in in its many Distros.
According to the current chart, Airport Mania os the most popular tycoon game at the moment. Also popular are Amuse Park, Big Time Bar and Burger Tycoon.
Cheetahs and dogs
Both Mac OS X and Windows are popular operating systems. They are popular because people like using them.