1.1.3a Input, output and storage devices applied to problems Quiz: OCR Computer Science, Unit 1

The 20 questions

1. Which optical storage feature represents a binary one or zero on a disk surface?

   • Track and sector
   • Byte and bit
   • Pit and land
   • North and south

2. Which secondary storage device uses NAND flash memory cells and has no moving parts?

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

3. What type of storage media is most cost-effective for long-term offsite archival of terabytes of data?

   • Magnetic tape
   • Solid-state drive
   • Blu-ray disc
   • USB flash drive

4. Which sensor should be connected to a microcontroller to automatically turn on streetlights at dusk?

   • Light sensor
   • Ultrasonic sensor
   • Infrared sensor
   • Proximity sensor

5. How many 700 MB CD-ROMs are required to store exactly 14 GB of data?

   • 2000
   • 200
   • 20
   • 2

6. Which output device produces physical motion by converting electrical signals into mechanical force?

   • Sensor
   • Actuator
   • Digitiser
   • Transducer

7. Why are solid-state drives preferred over magnetic hard drives in portable laptops?

   • Higher storage capacity
   • Greater shock resistance
   • Infinite write cycles
   • Lower purchase cost

8. Which printer type is most suitable for producing multi-part continuous carbon copies in a warehouse?

   • Thermal printer
   • Dot matrix printer
   • Laser printer
   • Inkjet printer

9. What main advantage do passive RFID tags have over active RFID tags?

   • Longer read range
   • Faster data transfer
   • No internal battery
   • Larger memory capacity

10. Which characteristic of OLED screens allows them to display deeper black levels than traditional LCDs?

    • Stronger LED backlights
    • Self-emissive pixels
    • Thicker glass layers
    • Higher refresh rates

11. Which input device allows a user with limited mobility to control a computer using breath pressure?

    • Sip-and-puff switch
    • Foot pedal
    • Concept keyboard
    • Graphics tablet

12. Which component of hard disk drive access time is the delay while the platter rotates?

    • Transfer time
    • Rotational latency
    • Queue delay
    • Seek time

13. Which barcode format can store significantly more data by encoding information horizontally and vertically?

    • 2D barcode
    • EAN barcode
    • 1D barcode
    • UPC barcode

14. Which type of screen allows multi-touch gestures by detecting changes in electrical current from a finger?

    • Resistive touchscreen
    • Capacitive touchscreen
    • Surface acoustic screen
    • Infrared touchscreen

15. Which output device is best suited for high-speed, high-volume black-and-white printing in a busy office?

    • Plotter
    • Inkjet printer
    • Laser printer
    • Thermal printer

16. Which input device uses a grid of buttons customised with labelled overlays for fast food ordering?

    • Barcode scanner
    • Trackerball
    • Optical mark reader
    • Concept keyboard

17. Which optical storage format provides the largest storage capacity per single-layer disc?

    • Compact disc
    • Blu-ray disc
    • LaserDisc
    • Digital versatile disc

18. What type of primary or secondary storage loses its contents when power is turned off?

    • Optical storage
    • Non-volatile memory
    • Flash storage
    • Volatile memory

19. Which input device converts physical paper documents into digital bitmap images?

    • Plotter
    • Optical character reader
    • Flatbed scanner
    • Digitiser tablet

20. Which input device technology reads hand-written pencil marks from pre-printed response forms like exam sheets?

    • OMR
    • MICR
    • Barcodes
    • OCR

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