题目内容
Bar code readers use _______ embedded in them to read bar codes.
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This reading device is used in banks to read the numbers on the bottom of checks and deposit slips.
Which of the following types of character recognition systems is used for standardized multiple-choice testing?
OMR, OCR, and MICR are all types of _______.
_______-input devices convert sounds into a form that can be processed by the system unit.
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