Correct Answer: A) CPU
Explanation: The Central Processing Unit (CPU) is responsible for executing instructions by performing arithmetic and logical operations.
A) Store data permanently
B) Execute instructions
C) Connect components and peripherals
D) Provide power to components
Correct Answer: C) Connect components and peripherals
Explanation: The motherboard is the main circuit board that connects the CPU, memory, storage, and peripherals, enabling communication between them.
A) CPU
B) GPU
C) RAM
D) Motherboard
Correct Answer: A) CPU
Explanation: The Central Processing Unit (CPU) is responsible for executing instructions by performing arithmetic and logical operations.
A) RAM
B) Cache
C) ROM
D) Register
Correct Answer: C) ROM
Explanation: Read-Only Memory (ROM) stores data permanently and is often used to store firmware.
A) Southbridge
B) Northbridge
C) Heat sink
D) Hard drive
Correct Answer: B) Northbridge
Explanation: The Northbridge chip on the motherboard connects the CPU to RAM and high-speed devices.
A) Process instructions
B) Control peripherals
C) Store temporary data
D) Convert electrical power
Correct Answer: D) Convert electrical
Explanation: The power supply unit (PSU) converts AC power from the outlet into the DC power required by computer components.
A) Keyboard
B) Monitor
C) Printer
D) GPU
Correct Answer: B) Monitor
Explanation: A monitor is a display device that shows the output of a computer system to the user.
A) Store data
B) Execute instructions
C) Dissipate heat from components
D) Transfer data
Correct Answer: C) Dissipate heat from components
Explanation: The heat sink absorbs and dissipates heat generated by components like the CPU to prevent overheating.
A) Scanner
B) Mouse
C) Monitor
D) Microphone
Correct Answer: A) Scanner
Explanation: A scanner converts physical images or documents into digital graphical data.
A) Retain BIOS settings
B) Power the CPU
C) Store temporary data
D) Provide power to peripherals
Correct Answer: A) Retain BIOS settings
Explanation: The CMOS battery powers the CMOS chip to retain BIOS settings and system time when the computer is off.
A) Sectors
B) Platters
C) Tracks
D) Heads
Correct Answer: B) Platters
Explanation: Hard drives store data on spinning disks called platters, which are divided into sectors and tracks.
A) SSD
B) ROM
C) RAM
D) Cache
Correct Answer: C) RAM
Explanation: Random Access Memory (RAM) is a type of volatile memory directly accessible by the CPU for temporary storage.
A) Enhance performance
B) Protect internal components
C) Execute programs
D) Connect external devices
Correct Answer: B) Protect internal components
Explanation: The computer case houses and protects internal components while providing structure and cooling.
A) Monitor
B) Motherboard
C) GPU
D) Sound card
Correct Answer: D) Sound card
Explanation: The sound card processes and outputs audio signals for speakers or headphones.
A) Boost graphical performance
B) Increase storage capacity
C) Enhance sound quality
D) Improve network connectivity
Correct Answer: A) Boost graphical performance
Explanation: External GPUs provide additional graphics processing power for high-performance tasks like gaming or rendering.
A) Data bus
B) Address bus
C) Memory bus
D) Front-side bus
Correct Answer: D) Front-side bus
Explanation: The front-side bus (FSB) connects the CPU to the main memory and chipset for data transfer.
A) Heat sink
B) Liquid cooling system
C) Fan
D) All of the above
Correct Answer: D) All of the above
Explanation: High-performance GPUs use a combination of heat sinks, fans, and liquid cooling systems to manage heat.
A) Connect external peripherals
B) Attach high-speed expansion cards
C) Store data temporarily
D) Transfer power to components
Correct Answer: B) Attach high-speed expansion cards
Explanation: PCIe slots are used to connect components like GPUs, network cards, and storage controllers.
A) Monitor
B) Scanner
C) Modem
D) Microphone
Correct Answer: C) Modem
Explanation: A modem converts analog signals from phone lines into digital data for communication.
A) Manage disk arrays for performance
B) Improve graphical processing
C) Enhance sound quality
D) Control network traffic
Correct Answer: A) Manage disk arrays for performance
Explanation: A RAID controller organizes multiple disks into arrays for redundancy, performance, or both.
A) Hard disk drive
B) SSD
C) RAM
D) Optical drive
Correct Answer: B) SSD
Explanation: Solid State Drives (SSDs) use NAND flash memory for fast, non-volatile data storage.
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