iOS(iPhone OS)

iOS (iPhone OS) is by apple for the development of iPhone operating system. It mainly is for iPhone, iPod touch and iPad use. Like its based on Mac OS X operating system, it also USES as Darwin based. Originally this system called iPhone OS, until June 7, 2010 general assembly declared renamed WWDC iOS. IOS system architecture is divided into four levels: the Core operating system layer (layer), the Core OS the Core of service layer (layer) Core Services for the Media, Media layer (layer), but the touchscreen layer (layer) Cocoa Touch. System operation 240MB memory space occupied probably.

The user interface

The concept of iOS user interface based on touch is able to use more direct operation. Control methods including sliding, light touch switch and buttons. Interact with system including sliding (swiping), light tapping), extrusion press (pinching) and a rotating ((reverse pinching). In addition, through its built-in accelerator, can make its rotating equipment to change its y to change direction, this screen design makes iPhone easier to use. The screen has a home button below, bottom is dock, there are four users of the most frequently used program icon is fixed on the dock. There is a status bar above the screen can show some relevant data, such as time, battery life and signal strength. The rest of the screen to display the current application. Start iPhone applications in the only way that current screen click the program icon, exit programs is press screen beneath the home button. In the third party software out and it directly were closed, but in iPhone 3.0 and subsequent version, when third-party software received the new information, apple's servers will put these notification push to iPhone or iPod Touch (no matter whether it is in operation). In many applications, the iPhone is a link between the, in this way, different application can share the same information (such as when you received includes a number of short message, you can choose the telephone number is save as contact or directly choose this number phone call).

Support software

IPhone and iPod Touch use based on the ARM architecture CPU, rather than apple's Macintosh computer use of x86 processors (like previous PowerPC or [[MC68000 | MC680x0]]), it USES video card by PowerVR OpenGL ES 1.1 rendering. Therefore, Mac OS X on applications cannot directly copied to run on iOS. They need to rewrite the ARM for iOS. But as mentioned below the Safari browser support ", the Web application procedures ". IOS 2.0 beginning, from the third party applications approved by apple's App can have been released and download on Microsoft.

IOS bringing applications

4.3 versions of the firmware of the Lord, the iPhone interface including the following bringing application: SMS (short message), calendar, photographs, camera, YouTube, the stock markets, maps (AGPS auxiliary of Google maps), weather, time, computer, memos, system establishment, iTunes (will be link to iTunes Music Store and iTunes App Store broadcast directory), Center and contact information, please. There are four of the most commonly used in applications including below are: telephone, E-mail, Safari and iPod. In addition to phone, text messaging, iPod Touch retained most iPhone application to bring. The "iPod" on iPhone Touch on the iPod program was divided into two: music and video. Located on the bottom of the interface dock app also according to iPod Touch's main function and changed to: music, video, photos, iTunes, the Center, the fourth generation please Touch more the camera iPod with video function! IPad retain only part of bringing iPhone applications: calendar, contacts, memos, video, YouTube, iTunes Store, App Store and Settings; The most commonly used in the four below application is: Safari, E-mail, photographs, and iPod

Web applications

In 2007, apple worldwide developers conference and iPod Touch apple announced the iPhone Safari will pass through the Internet browser support some third party applications, these applications called Web applications. They can write out by AJAX Internet technology.

Don't be official support third-party software

Now, the iPhone and iPod Touch can only from the App Store with official method, install complete software. However, since version 1.0 began, illegal third-party software can run on the iPhone. These software faced by any iOS update and completely destroyed once the possibility, though apple also once stated it won't in order to destroy these third-party software specially designed a system upgrades (will unlock software SIM except). These third-party software released by the method is that the Installer or Cydia two programs will be installed in iPhone after the prison on iPhone.