The oldest theropod known (in fact, currently the oldest known North American dinosaur) is Camposaurus of the middle Late Triassic. Much better known, however, is Coelophysis of the late Late Triassic.
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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.