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Learning objective

Students should be familiar with direct data entry and related devices. They need to understand the features, applications, benefits, and drawbacks of various direct data entry devices such as magnetic stripe readers, chip and PIN readers, RFID readers, OMR, OCR, barcode readers, and QR scanners.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Information and Communication TechnologyInput and output devices

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Quick explanation

Students should be familiar with direct data entry and related devices. They need to understand the features, applications, benefits, and drawbacks of various direct data entry devices such as magnetic stripe readers, chip and PIN readers, RFID readers, OMR, OCR, barcode readers, and QR scanners

  • This point belongs to Direct data entry and associated devices, especially Direct data entry and associated devices outcomes.
  • You need to be able to students should be familiar with direct data entry and related devices. They need to understand the features, applications, benefits, and drawbacks of various direct data entry devices such as magnetic stripe readers, chip and PIN readers, RFID readers, OMR, OCR, barcode readers, and QR scanners.
  • The key ideas to know are Identify, Describe, and Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

IdentifyDescribeExplainDiscuss

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Paper 1 structured question: Direct data entry and associated devices

Paper 1Theory2 marks

Description

Direct Data Entry Devices

A supermarket uses barcode readers at checkout to scan product codes. A bank uses chip and PIN readers for card payments. An examination board uses OMR to mark multiple-choice answer sheets.

  1. a

    Describe the benefits of using barcode readers in supermarkets.

    Aim for approximately 2 distinct marking points.

    [2]
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