TestOut LabSim A+ Certification Practice Exam

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What device would you add to a computer to scan UPC symbols at a retail store?

Digital Camera
Bar Code Reader
Scanner
Graphics Tablet

The correct answer is: Bar Code Reader

A barcode reader is the appropriate device to scan UPC symbols at a retail store because it is specifically designed to read the black and white patterns of the barcode. These devices utilize laser or imaging technology to interpret the information encoded in the UPC (Universal Product Code), which is essential for inventory management, sales tracking, and product identification in retail environments. While a digital camera and scanner can capture images, they do not possess the specialized decoding capabilities required for interpreting barcodes quickly and accurately within the context of retail operations. A graphics tablet, meanwhile, is primarily used for inputting drawings and graphics, and it has no applicable function for scanning UPC codes. Hence, the barcode reader is the most effective choice for this task due to its targeted purpose and efficiency in processing UPC symbols.