If you have an iPhone, you must have seen a message like this when you are running the iTunes on your computer.
A new iPhone software version (3.x.x) is available for the
iPhone “iPhoners.org“. Would you like to download and install
it now?
iTunes will verify the software update with Apple.
It’s a notification that there is a new iPhone software for your iPhone which currently connected to your computer. Some people called it as iPhone firmware, or iPhone OS.
The iPhone OS, known as OS X iPhone in its early history, is the operating system developed by Apple Inc. for the iPhone and iPod touch. Like Mac OS X, from which it was derived, it uses the Darwin foundation. iPhone OS has four abstraction layers: the Core OS layer, the Core Services layer, the Media layer, and the Cocoa Touch layer. The operating system takes less than 240 Megabytes of the device’s total memory storage.
quoted from Wikipedia
3.x.x = The new version that available for update.
iPhoners.org = The iPhone’s name.
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