Mouse - sends data to your computer that tells your computer where to display the cursor of your operating system's graphical user interface., Keyboard - is a device used to enter data and commands to a computer, scanner - is a device that captures images from photographic prints, posters, magazine pages, and similar sources for computer editing and display., Barcode reader - price scanner or point-of-sale or POS- all are the same electronic hand-clutched or stagnant input machines., Track ball - is an upside-down mouse that rotates in place within a socket.,

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