iOS is the iPhone's operating system that is used by Apple. It is similar to the Mac OS, and is theoretically more stable than Windows OS.
The closest Operating System to iOS for PC's would be Mac OS. This is because they are both made by apple and share some similar features.
iPhone apps work on iOS devices (iPhone, iPad or iPod Touch) they will not work on a Mac running Mac OS X 10.7 (Lion) or any other Mac OS X version
There is no Cydia for Mac OS X. Only jailbroken iOS devices are currently supported by Cydia.
Mac OS X is based on UNIX.
The Apple iPhone uses Apple's iOS which is based on their Mac OS X system (See links below).
no it's only for ios and android os , maybe for mac
No, you can't, only Mac OS X and iOS programs.
After Mac OS. Mac OS was based on the earlier Xerox Alto system.
Mac OS X is based on the XNU kernel, a microkernel Mach kernel with a BSD userland, which makes Mac OS X's kernel a hybrid-kernel.
Omnigaffle is a charting software, similar to Microsoft Visio. Omnigaffle is compatible with Apple devices: Mac OS X Leopard, Mac OS X Snow Leopard, Mac OS X Lion and iOS (iPad).
Mac OS X PPC is a version of Apple's Mac OS X operating system that runs on Power PC (PPC) architecture. This is opposed to Mac OS X for X86 which runs on Intel-based Macs. Mac OS X 10.0 through 10.5 can run on PowerPC based macs whereas Mac OS X 10.6 Snow Leopard will only run on Intel-based Macs.