ICT Computer Hardware and Peripherals 5

Question 1

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

Accepted Answer

Laser printer

Answer

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.

Question 2

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

Accepted Answer

Provide temporary battery power during outages and regulate voltage

Answer

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

Question 3

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

Accepted Answer

Two memory modules work together doubling the bandwidth to the CPU

Answer

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

Question 4

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

Accepted Answer

Storage controller / disk controller

Answer

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.

Question 5

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

Accepted Answer

Initialize hardware and boot the system before the OS loads

Answer

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.

ICT - Information Communication Technology Practice Test

ICT - Information Communication Technology Practice Test

ICT Computer Hardware and Peripherals 5