Explain certain usefulness of barcode reader and touch screen
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Barcode scanning allows quicker data capture. This reduces the need to manually enter data. Specifically, the process is sped up & labour costs are reduced.
Touch screen is a useful alternative to a mouse or keyboard for navigating a GUI (graphical user interface). Touch screens are used on a variety of devices, such as computer and laptop displays, smartphones, tablets, cash registers, and information kiosks
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