![]() Most models also include a wheel for scrolling. ![]() One or more buttons on the mouse allow you to enter instructions by clicking. Typically, a mouse resides on a flat surface, and by moving the mouse, you can move the pointer on the screen. When operating systems started to use graphical user interface (GUI), the mouse was developed as a pointing device. A keyboard contains keys for letters and numbers as well as for specialized tasks, such as Enter, Delete, etc. In the early days of computing, it was typically the only input device. Examples of Input DevicesĪ keyboard is the most fundamental input device for any computer system. ![]() Input devices represent one type of computer peripheral – the other two types are output devices and storage devices. Many other input devices exist for entering other types of information, such as images, audio and video. These two input devices are essential for you to interact with your computer. The most fundamental pieces of information are keystrokes on a keyboard and clicks with a mouse. An input device for a computer allows you to enter information.
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