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information contained in a bar code. Barcode reader consists of a scanner, a
decoder and a cable used to connect the reader with a computer. It is also called
a price scanner or point-of-sale (POS) scanner.

Barcode reader / scanner

Function: It is used to capture and read information contained in a bar
code

Camera (Webcam)

Camera is an optical instrument for capturing images or recording videos. On
the other hand, Webcam is a video camera that feeds or streams its image in real
time to or through a computer to computer network.

Camera (Webcam)

Function: It allows you to record and send small videos or have a
video chat with someone over the Internet.