A supermarket uses barcode readers at checkout counters. Which type of barcode reader uses a beam of light that bounces off the barcode and is detected by sensors?

Q: How do I try a free CIE Information and Communication Technology question?

Just tap any of the four options on this page — no signup, no card, nothing to install. You'll see the correct answer and a full mark-scheme-style explanation within a second. Each visit shows a fresh randomly-picked question from the live CIE IGCSE Information and Communication Technology bank, so you can keep refreshing to try different ones before deciding whether to create a free account for daily access.

Q: Is Kramizo really free for CIE Information and Communication Technology students?

Yes — completely free. Every student gets 45 questions a day on the free plan, across any board and any subject, with no card required and no trial countdown. Kramizo's optional Pro plan removes the daily cap and adds analytics, but the free plan is genuinely free forever. We make money from the small percentage of students who choose to upgrade — not from selling data or ads.

Q: Are the Information and Communication Technology questions aligned to the CIE IGCSE syllabus?

Every question is written against the published CIE IGCSE Information and Communication Technology syllabus and reviewed for accuracy before being added to the bank. We match the command words (state, describe, explain, evaluate), mark allocations, and difficulty tier you'll see on real CIE past papers. Explanations are written in the style of official examiner mark schemes so students learn exactly what marks are being awarded for.

Question

A supermarket uses barcode readers at checkout counters. Which type of barcode reader uses a beam of light that bounces off the barcode and is detected by sensors?

Accepted Answer

Laser scanner — Award 1 mark for identifying laser scanner as using a reflected beam of light. A is incorrect — CCD readers use an array of light sensors to capture an image of the barcode. C is incorrect — MICR readers detect magnetic ink characters, not barcodes. D is incorrect — OMR readers detect marks in predetermined positions on paper.

Answer

MICR reader

Answer

Laser scanner

Answer

OMR reader

Answer

CCD reader

One real Information and Communication Technology question.No signup. 30 seconds.

One real Information and Communication Technology question.
No signup. 30 seconds.