Apple announced this system for the first time at Macworld conference on June 9, 2007. Originally designed for iPhone, it was later applied to iPod touch, iPad, Apple TV and other products. IOS, like apple's Mac OS X operating system, belongs to a commercial operating system similar to Unix. Originally this system was called iPhone OS. Because iPad, iPhone and iPod touch all use iPhone OS, it was announced at the 20 10WWDC conference that it was renamed as iOS(iOS is the registered trademark of Cisco's network equipment operating system in the United States, and Apple's renaming has been authorized by Cisco).
The Mac series is Apple's Macintosh personal consumption computer starting from 1984.
Such as: iMac, Mac mini, Macbook Air, Macbook Pro, Mac Pro and other computers. Using an independent Mac OS system, the latest OS X series is developed based on the NeXT system and does not support compatibility. It is a complete and independent ecosystem.