iPhone 4

iPhone is a multi touch screen smart phone which is developed by Apple. It is a fourth generation phone, and is a successor of iphone 3GS. It is also used for video calling, movies, music, games and internet access. iPhone runs a specially designed operating system known as  Apple’s iOS ,same operating system is used on the other iPhones. iPad, and iPod touch. It is simply used and controlled by user’s fingertips on multi touch display, and it is sensitive to fingertip contact.

The major difference between iPhone 4 and the previous iPhones is the new style and design, it has stainless steel frame which also works as an antenna. The internal parts of this specific device are situated between 2 panels of aluminosilicate glass which is chemically strengthened. It possesses an Apple A4 processor, and 512 MB eDRAM which is four times of its predecessors. It has “Retina display” which is 3.5 inch(89 mm) of Light emitting diode backlit LCD with 960x640 pixel resolution.