The Apple iPhone 4 is the world’s first phone running in apple 4OS. The960×640pixel Retina display on iPhone 4 is the sharpest high-resolution Smartphone screen ever, the pixel density is so high that the human eye is unable to distinguish individual pixel. The Apple iPhone 4 is the thinnest Smartphone ever. Its screen is made up of aluminosilicate glass which type of glass is used in the windshields of helicopters and high speed trains...
How to Improve Your Study Skills
13 years ago