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Computer Hardware and Peripherals Flashcards

7 cards from real ICT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Computer Hardware and Peripherals flashcards as text

  1. Which type of printer uses a laser beam and toner powder to produce output?

    Answer: Laser printer

    A laser printer uses a laser to create an electrostatic image on a drum, which attracts toner powder that is then fused to paper with heat.

  2. What is the function of a UPS (Uninterruptible Power Supply) connected to a desktop computer?

    Answer: Provide temporary battery power during outages and regulate voltage

    A UPS contains a battery that instantly powers the system during a power outage, giving users time to save work and shut down safely.

  3. In the context of RAM, what does 'dual-channel' mode mean?

    Answer: Two memory modules work together doubling the bandwidth to the CPU

    Dual-channel mode pairs two identical RAM sticks across two memory channels, effectively doubling the memory bus width and increasing overall bandwidth.

  4. Which hardware component directly controls the speed of data transfer between the hard drive and the CPU?

    Answer: Storage controller / disk controller

    The storage controller (often built into the chipset or CPU) manages the interface protocol (SATA, NVMe) and controls how data flows between storage and system memory.

  5. What is the purpose of BIOS/UEFI firmware stored on a motherboard's flash chip?

    Answer: Initialize hardware and boot the system before the OS loads

    BIOS/UEFI is the first code executed at power-on; it performs POST (Power-On Self-Test), configures hardware, and hands control to the bootloader.

  6. A scanner's resolution is measured in DPI. What does a higher DPI value mean for scanned images?

    Answer: Greater image detail captured per inch

    Higher DPI in a scanner means more samples are taken per inch of the original document, producing a more detailed digital image at the cost of larger file size.

  7. What distinguishes a 'hybrid drive' (SSHD) from a standard HDD?

    Answer: It combines a magnetic disk with a small NAND flash cache for frequently accessed data

    An SSHD pairs a traditional magnetic hard drive with a small SSD cache (typically 8–32 GB) that stores frequently accessed data for faster retrieval.