Joy Stick
These devices are commonly used in games (games) computer. Joy Stick is usually shaped rod, while the games are usually paddle-shaped or square box made of plastic comes with buttons that will govern the motion of an object in a computer.
Barcode reader
Barcode included in the input unit (input device). The function of this tool is to read a code that shaped boxes or bold vertical lines are then translated in the form of numbers. These codes are usually attached to food products, beverages, electronic equipment and books. Today, every cashier in a supermarket or supermarkets in Indonesia to identify the products it sells with a barcode.
Barcode reader
Barcode
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