Retail and Grocery Stores Use Which Kind of Bar Code

question 111

Multiple Choice

Retail and grocery stores use which kind of bar code?

• A)UPC (Universal Product Code)
• B)Interleaved 2 of 5
• C)Codabar
• D)POSTNET (Postal Numeric Coding Technique)

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Definitions:

Quantized Energy Levels

The concept in quantum mechanics that energy levels in atoms and molecules are discrete, not continuous.

Spectral Emissions

The set of wavelengths or frequencies emitted by a substance or object, often used to identify its composition.

Frequency

The number of occurrences of a repeating event per unit of time, often used in the context of waves.

Wavelength

The distance between successive crests of a wave, especially in sound waves, light, or other electromagnetic radiation.