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Tamil Nadu Board of Secondary EducationHSC Science Class 11

Explain the following. Bar code/QR code Reader - Computer Applications

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Question

Explain the following.

Bar code/QR code Reader

Short Note

Solution

  1. A Bar code is a pattern printed in lines of different thicknesses.
  2. The Bar code reader scans the information on the bar codes transmits it to the computer for further processing.
  3. The system gives fast and error-free entry of information into the computer.

Quick response (QR) code: The QR code is the two-dimension bar code that can be read by a camera and processed to interpret the image.

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Chapter 1: Introduction to Computers - Evaluation - Section - D [Page 12]

APPEARS IN

Samacheer Kalvi Computer Science [English] Class 11 TN Board
Chapter 1 Introduction to Computers
Evaluation - Section - D | Q 3. c. | Page 12
Samacheer Kalvi Computer Applications [English] Class 11 TN Board
Chapter 1 Introduction to Computers
Evaluation | Q 3. c. | Page 12
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