Young Teen Girl Taking Pictures In A Mirror With Iphone

The back the original iPhone was made aluminum with a black plastic accent. The iPhone 3G and 3GS feature a full plastic back to increase the strength the GSM signal. The iPhone 3G was available in an 8 GB black model, or a black or white option for the 16 GB model. They both are now discontinued. The iPhone 3GS was available in both colors, regardless storage capacity. The white model was discontinued in favor a black 8 GB low-end model. The iPhone 4 has an aluminosilicate glass front and back with a stainless steel edge that serves as the antennae. It too is available in black or white.
The iPhone has garnered positive reviews from critics like David Pogue and Walter Mossberg. The iPhone attracts users all ages.
The iPhone (and iPod Touch) run an operating system known as iOS (formerly iPhone OS). It is a variant the same Darwin operating system core that is found in Mac OS X. Also included is the "Core Animation" stware component from Mac OS X v10.5 Leopard. Together with the PowerVR hardware (and on the iPhone 3GS, OpenGL ES 2.0), it is responsible for the interface's motion graphics. The operating system takes up less than half a gigabyte. It is capable supporting bundled and future applications from Apple, as well as from third-party developers. Stware applications cannot be copied directly from Mac OS X but must be written and compiled specifically for iOS.