Input units in the computer :

one of the most important input units that connect with the computer what comes: keyboard: the keyboard is classified within the input devices, used to enter text and digital information to the computer, and the keyboard is used to guide the computer to do some actions by typing commands, often via shortcuts located on the keyboard. Mouse: (Mouse); is a terminal device used to send instructions from the user to the computer by moving the mouse cursor that deals with Windows, files, and programs, often the mouse has two left and right buttons, and the mouse is used only in devices containing the (GUI). Scanner: (Scanner); works to transform the existing information on paper into digital information by captured as an image, where it is stored in the computer and edit them using specialized programs, as characterized by the process of data conversion using the scanner as a less expensive, more quality and reliability in the