Input and Output Devices – 20

20. The pattern of printed lines on most products are called :

(a) prices
(b) OCR
(c) scanners
(d) bar codes

Answer : (d)

Explanation : No answer description available for this question. Let us discuss.

Topic Name : Input and Output Devices
Subject Name : General Computer
Exam Name : UPSC, State PSC, SSC, NET, Bank, PSUs, RRB
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