Technological advances in electronic devices, such as the iPad and iPhone 4, both from Apple, are increasingly targeted towards visually impaired people. Both devices have a zoom feature, a white on black option, and a screen reading feature that are easily controlled with your fingers by touching the screen. They also have special features for those with hearing impairments. Most computers also come with special features for visually impaired people, and the Apple Computer models are particularly comprehensive and easy to use.