What is the name of the computer-readable codes made up of lines with different widths or lengths?

Computer Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Computer Mcqscomputer-mcqs
Published
7 Jun 2017
Last updated
28 May 2026

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Explanation

Option D is correct because a barcode consists of lines of varying thickness or length that can be scanned and interpreted by computers. ASCII codes represent characters, magnetic tapes store data magnetically, and OCR scanners read printed text, not line patterns.

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