The Optomap allows for a more comfortable retinal exam. Panoramic 200 Retinal Image - Click for hi resolution image. The top image to the right compares the doctor's view of your eye through an undilated pupil with an instrument called a direct ophthalmoscope (inner ring).
An Android device is a device that runs on the Android operating system. Android is an array of software intended for mobile devices that features an operating system, core applications and middleware. An Android device may be a smartphone, tablet PC, e-book reader or any type of mobile device that requires an OS. Android is developed by the Open Handset Alliance, which is led by Google.
Input Device. An input device is any hardware device that sends data to a computer, allowing you to interact with and control the computer. The picture shows a Logitech trackball mouse, an example of an input device. The most commonly used input devices on a computer are the keyboard and mouse. However, there are dozens of other devices that can also be used to input data into the computer. Below is a list of computer input devices that can be used with a computer or a computing device.