Which part of the computer is often called its 'brain'?
Correct answer: B
The Central Processing Unit executes instructions and is commonly called the brain of the computer.
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What does CPU stand for?
Correct answer: C
CPU is the standard abbreviation for Central Processing Unit.
Which component temporarily holds data and instructions currently in use?
Correct answer: C
Random Access Memory (RAM) is volatile memory used for active data and instructions.
What does RAM stand for?
Correct answer: C
RAM stands for Random Access Memory.
Which type of memory retains its data even when the power is switched off?
Correct answer: B
Read Only Memory (ROM) is non-volatile and retains data without power.
What does ROM stand for?
Correct answer: D
ROM stands for Read Only Memory.
Which circuit board holds the CPU, RAM, and other key components, connecting them together?
Correct answer: C
The motherboard is the main circuit board that connects all major hardware components.
Which hardware component converts AC mains power into DC power usable by the computer?
Correct answer: C
The Power Supply Unit converts alternating current to the direct current the components need.
Which device is used to cool down the CPU and prevent overheating?
Correct answer: D
A heat sink, usually paired with a fan, dissipates heat generated by the CPU.
What is the small amount of very fast memory located close to or inside the CPU called?
Correct answer: C
Cache memory is high-speed memory that stores frequently used data near the CPU.
Which of the following is an example of secondary storage?
Correct answer: B
Secondary storage devices, such as hard disks, retain data permanently even without power.
Which storage technology uses spinning magnetic platters to store data?
Correct answer: D
An HDD stores data magnetically on rotating platters.
Which storage technology has no moving parts and uses flash memory chips?
Correct answer: B
An SSD stores data electronically on flash memory chips with no moving parts.
Compared to an HDD, an SSD is generally:
Correct answer: B
SSDs are significantly faster than HDDs but typically cost more per gigabyte of storage.
Which port is commonly used to connect a monitor with digital video and audio in one cable?
Correct answer: D
HDMI (High-Definition Multimedia Interface) carries both video and audio over a single cable.
Which port type is widely used to connect keyboards, mice, printers, and flash drives?
Correct answer: A
USB (Universal Serial Bus) is the most common general-purpose peripheral connector.
What does USB stand for?
Correct answer: A
USB stands for Universal Serial Bus.
Which port is typically used to connect a computer to a wired local network?
Correct answer: A
The RJ-45 port is used for wired Ethernet network connections.
Which older port type was commonly used for telephone/modem connections?
Correct answer: D
RJ-11 connectors are used for telephone lines and older dial-up modems.
Which expansion card is primarily responsible for rendering images and video output?
Correct answer: C
The graphics card, containing a GPU, renders images and video for display.
Which expansion card allows a computer to connect to a network?
Correct answer: B
A NIC allows a computer to connect to a wired or wireless network.
What is BIOS an abbreviation for?
Correct answer: C
BIOS stands for Basic Input Output System, firmware that initializes hardware at startup.
Which firmware initializes hardware components when a computer is switched on, before the OS loads?
Correct answer: A
BIOS or its modern successor UEFI performs hardware initialization during boot.
What is the modern replacement for traditional BIOS, offering faster boot and larger disk support?
Correct answer: A
UEFI (Unified Extensible Firmware Interface) is the modern successor to legacy BIOS.
Which measurement describes how fast a CPU can process instructions?
Correct answer: B
Clock speed, measured in gigahertz, indicates how many cycles a CPU can perform per second.