On June 29, 2007 the first iPhone was released. On June 11, 2007, it was announced at the Apple’s Worldwide Developers Conference, it is that the iPhone would support third-party applications using the Safari engine on the device. Third parties will be creating Web 2.0 applications, and users will access them via the Internet.

There are eight generations of iPhone models, each accompanied by one of the eight major versions of iOS. The original first generation iPhone was a GSM phone, and established design precedents, such as the placement of the buttons, which is maintained for all versions and screen sizes supported in the next four repetitions.

Apple CEO Steve Jobs sent the original focus away from a tablet, such as iPAD, and to the phone. Apple’s, created the device during a secretive collaboration with AT & T Mobility-Cingular Wireless at the time, an estimated development costs up to $150 million within thirty months.

The latest release of Apple smartphone is iPhone 6, iPhone 6S and 6S Plus comes with 16GB, 32GB, 64GB memory in silver, white, gold, rose gold, space grey color.

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