_______ Scanners are used in shops and malls to scan price of goods
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Laser scanners are used in shop and malls
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laser Scanners are used in shops and malls to scan price of goods
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Anti-shoplifting alarms use a technology called RF (radio-frequency), while a similar (but more advanced) technology called RFID (radio-frequency identification) has many other uses, from tracking pets and public library stocktaking to collecting fares from bus passengers
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