Lesson 4.7.4.1

4.7.4.1 Input, output and secondary storage devices Quiz: AQA Computer Science, Unit 7

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.7.4.1, Input, output and secondary storage devices: 20 multiple choice questions for the AQA Computer Science (7517), Unit 7: Fundamentals of computer organisation and architecture, written with Revision Ninja.

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The 20 questions

  1. Which device is used at a supermarket checkout to read product codes?

    • A solid-state disk
    • A laser printer
    • A digital projector
    • A barcode reader

  2. Which technology uses radio signals to identify tagged items without needing a line of sight?

    • RFID
    • Barcodes
    • Optical discs
    • Laser printing

  3. Which output device uses a laser and toner to produce pages of text?

    • A laser printer
    • A digital camera
    • A barcode reader
    • An RFID reader

  4. What is the main advantage of using a barcode reader at a checkout?

    • High-resolution imaging
    • Large data storage
    • Low energy usage
    • Fast data entry

  5. Which input device is best suited for capturing a digital image of a 3D object?

    • Digital camera
    • RFID reader
    • Barcode reader
    • Flatbed scanner

  6. What primary property of secondary storage makes it necessary in a computer system?

    • Fast clock speed
    • Non-volatile storage
    • Volatile memory
    • High latency

  7. Which secondary storage device stores data magnetically on rotating platters?

    • An optical disk
    • A hard disk drive
    • A solid-state disk
    • Random access memory

  8. Which secondary storage device uses NAND flash memory with a controller that manages pages and blocks?

    • A solid-state disk
    • A hard disk drive
    • A read-only memory chip
    • An optical disk

  9. What is a major advantage of a solid-state drive over a magnetic hard disk drive?

    • Lower cost
    • Lower access latency
    • Higher storage capacity
    • Unlimited write cycles

  10. At what level must NAND flash memory in an SSD be erased before rewriting data?

    • Sector level
    • Bit level
    • Page level
    • Block level

  11. Which secondary storage type is read with a laser?

    • An RFID tag
    • An optical disk
    • A hard disk drive
    • A solid-state disk

  12. A file of 2400 MB is copied to a USB flash drive that transfers at 60 MB per second. How long does the copy take, ignoring overheads?

    • 400 seconds
    • 2.5 minutes
    • 40 seconds
    • 4 seconds

  13. A disk with 500 GB capacity holds 120 GB of files and gains 25 GB of new files each week. How many complete weeks can pass before the disk is full?

    • 20
    • 15
    • 16
    • 5

  14. Which secondary storage device is most shock-resistant for use in a portable laptop?

    • Optical disk drive
    • Hard disk drive
    • Solid-state drive
    • Magnetic tape drive

  15. Which secondary storage device provides the lowest cost per gigabyte for high-capacity archives?

    • Main memory
    • Hard disk drive
    • Cache memory
    • Solid-state drive

  16. Why do solid-state drives have lower latency than magnetic hard disk drives?

    • Larger page capacity
    • Wider address bus
    • No moving parts
    • Higher clock speed

  17. Roughly how long does it take to read a 1 TB hard disk at 150 MB/s?

    • 1.9 hours
    • 45 minutes
    • 5.2 hours
    • 11 minutes

  18. How does main memory compare to secondary storage regarding persistence and speed?

    • Slower and non-volatile
    • Faster and non-volatile
    • Slower and volatile
    • Faster and volatile

  19. What is a key advantage of solid-state drives over magnetic hard disks?

    • Unlimited write cycles
    • Lower purchase cost
    • Higher maximum capacity
    • Faster access times

  20. Which of these is an input device rather than an output device?

    • A laser printer
    • A projector
    • A monitor
    • A digital camera

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