Bar code readers use ________ embedded in them to read bar codes.
A)coprocessors
B)magnetic cells
C)RFID microchip
D)photoelectric cells

Question

Quizplus · Accepted Answer

Bar code readers use photoelectric cells to read bar codes. These cells detect the reflected light from the black and white spaces of the code and convert it into electrical signals that can be interpreted by the device. Neither coprocessors nor RFID microchips are used in bar code readers, and magnetic cells aren't relevant to the process.

Bar Code Readers Use ________ Embedded in Them to Read