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| Teaching Since: | Apr 2017 |
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bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016
Professor
Harvard Square Academy (HS2)
Mar-2012 - Present
What are the two basic components of a photoelectric sensor?
2. Compare the operation of the reflective-type and through-beam photoelectric sensors.
3. Give an explanation of how a scanner and a decoder act in conjunction with each other to read a bar code.
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