Here are 100 objective questions along with multiple-choice options and answers related to computer hardware:
- Question: What is the primary function of a CPU (Central Processing Unit)?
- A) Input data from peripherals
- B) Execute instructions and perform calculations
- C) Store data temporarily
- D) Display output on the monitor
- Answer: B) Execute instructions and perform calculations
- Question: Which component is responsible for storing instructions and data that are currently being used by the CPU?
- A) RAM (Random Access Memory)
- B) ROM (Read-Only Memory)
- C) Hard Disk Drive (HDD)
- D) SSD (Solid State Drive)
- Answer: A) RAM (Random Access Memory)
- Question: What does BIOS stand for?
- A) Basic Input Output System
- B) Binary Input Output System
- C) Basic Integrated Operating System
- D) Binary Integrated Operating System
- Answer: A) Basic Input Output System
- Question: Which component is responsible for converting digital signals from the computer into analog signals for transmission over telephone lines?
- A) Modem
- B) NIC (Network Interface Card)
- C) Router
- D) Switch
- Answer: A) Modem
- Question: Which component is responsible for providing power to all other components within the computer system?
- A) PSU (Power Supply Unit)
- B) UPS (Uninterruptible Power Supply)
- C) Motherboard
- D) CPU (Central Processing Unit)
- Answer: A) PSU (Power Supply Unit)
- Question: What is the purpose of the motherboard in a computer system?
- A) Executes instructions and performs calculations
- B) Stores data temporarily
- C) Provides a platform for other hardware components to communicate with each other
- D) Displays output on the monitor
- Answer: C) Provides a platform for other hardware components to communicate with each other
- Question: Which type of memory is non-volatile and retains its data even when the power is turned off?
- A) RAM (Random Access Memory)
- B) ROM (Read-Only Memory)
- C) Cache Memory
- D) Virtual Memory
- Answer: B) ROM (Read-Only Memory)
- Question: Which component is responsible for storing data permanently in a computer system?
- A) RAM (Random Access Memory)
- B) ROM (Read-Only Memory)
- C) Hard Disk Drive (HDD)
- D) Cache Memory
- Answer: C) Hard Disk Drive (HDD)
- Question: What is the purpose of the GPU (Graphics Processing Unit)?
- A) Executes instructions and performs calculations
- B) Stores data temporarily
- C) Provides power to other components
- D) Handles graphics rendering and processing
- Answer: D) Handles graphics rendering and processing
- Question: Which component is responsible for connecting the computer to a network?
- A) Modem
- B) NIC (Network Interface Card)
- C) Router
- D) Switch
- Answer: B) NIC (Network Interface Card)
- Question: What does USB stand for?
- A) Unified Serial Bus
- B) Universal Serial Bus
- C) Ultra Speed Bus
- D) United Serial Bandwidth
- Answer: B) Universal Serial Bus
- Question: Which type of port is used to connect a monitor to a computer?
- A) VGA (Video Graphics Array)
- B) HDMI (High Definition Multimedia Interface)
- C) USB (Universal Serial Bus)
- D) RJ45 (Registered Jack 45)
- Answer: B) HDMI (High Definition Multimedia Interface)
- Question: Which component is responsible for cooling the CPU to prevent overheating?
- A) Fan
- B) Heatsink
- C) Liquid Cooler
- D) Thermal Paste
- Answer: B) Heatsink
- Question: What is the purpose of the CMOS battery on the motherboard?
- A) Powers the CPU
- B) Stores BIOS settings
- C) Stores temporary data
- D) Powers the GPU
- Answer: B) Stores BIOS settings
- Question: Which component is responsible for providing audio output in a computer system?
- A) Sound Card
- B) Graphics Card
- C) CPU
- D) RAM
- Answer: A) Sound Card
- Question: What does RAID stand for?
- A) Redundant Array of Independent Disks
- B) Random Access Independent Drives
- C) Rapid Access Integrated Data
- D) Redundant Accelerated Input/Output
- Answer: A) Redundant Array of Independent Disks
- Question: Which component is responsible for converting digital data into analog signals for output to speakers or headphones?
- A) DAC (Digital-to-Analog Converter)
- B) ADC (Analog-to-Digital Converter)
- C) GPU (Graphics Processing Unit)
- D) CPU (Central Processing Unit)
- Answer: A) DAC (Digital-to-Analog Converter)
- Question: Which type of memory is located on the CPU chip itself and is used to store frequently accessed data?
- A) RAM (Random Access Memory)
- B) ROM (Read-Only Memory)
- C) Cache Memory
- D) Virtual Memory
- Answer: C) Cache Memory
- Question: Which component is responsible for providing temporary storage for data and instructions that are currently being processed by the CPU?
- A) RAM (Random Access Memory)
- B) ROM (Read-Only Memory)
- C) Hard Disk Drive (HDD)
- D) SSD (Solid State Drive)
- Answer: A) RAM (Random Access Memory)
- Question: Which type of display technology uses individual pixels to generate images on the screen?
- A) LCD (Liquid Crystal Display)
- B) LED (Light-Emitting Diode)
- C) OLED (Organic Light-Emitting Diode)
- D) CRT (Cathode Ray Tube)
- Answer: C) OLED (Organic Light-Emitting Diode)
- Question: Which component is responsible for providing power to a laptop when it is not connected to an electrical outlet?
- A) Battery
- B) Charger
- C) PSU (Power Supply Unit)
- D) UPS (Uninterruptible Power Supply)
- Answer: A) Battery
- Question: What is the purpose of a UPS (Uninterruptible Power Supply)?
- A) Converts digital signals into analog signals
- B) Provides power to the computer during a power outage
- C) Connects the computer to a network
- D) Stores data permanently
- Answer: B) Provides power to the computer during a power outage
- Question: Which component is responsible for converting analog signals from a microphone into digital data for processing by the computer?
- A) DAC (Digital-to-Analog Converter)
- B) ADC (Analog-to-Digital Converter)
- C) Modem
- D) GPU (Graphics Processing Unit)
- Answer: B) ADC (Analog-to-Digital Converter)
- Question: What is the purpose of a network interface card (NIC)?
- A) Provides power to the computer
- B) Converts digital signals into analog signals
- C) Connects the computer to a network
- D) Stores BIOS settings
- Answer: C) Connects the computer to a network
- Question: Which component is responsible for reading data from and writing data to optical discs such as CDs and DVDs?
- A) Optical Drive
- B) Hard Disk Drive (HDD)
- C) SSD (Solid State Drive)
- D) RAM (Random Access Memory)
- Answer: A) Optical Drive
- Question: What is the purpose of a GPU (Graphics Processing Unit)?
- A) Executes instructions and performs calculations
- B) Stores data temporarily
- C) Handles graphics rendering and processing
- D) Provides power to other components
- Answer: C) Handles graphics rendering and processing
- Question: Which component is responsible for connecting external devices such as keyboards, mice, and printers to a computer?
- A) USB Port
- B) VGA Port
- C) HDMI Port
- D) Ethernet Port
- Answer: A) USB Port
- Question: What is the purpose of a heat sink in a computer system?
- A) Provides power to the CPU
- B) Cools the CPU to prevent overheating
- C) Stores BIOS settings
- D) Handles graphics rendering and processing
- Answer: B) Cools the CPU to prevent overheating
- Question: Which type of memory is volatile and loses its data when the power is turned off?
- A) RAM (Random Access Memory)
- B) ROM (Read-Only Memory)
- C) Cache Memory
- D) Virtual Memory
- Answer: A) RAM (Random Access Memory)
- Question: Which component is responsible for converting digital data from the computer into analog signals for output to speakers or headphones?
- A) DAC (Digital-to-Analog Converter)
- B) ADC (Analog-to-Digital Converter)
- C) GPU (Graphics Processing Unit)
- D) CPU (Central Processing Unit)
- Answer: A) DAC (Digital-to-Analog Converter)
- Question: What is the purpose of RAID (Redundant Array of Independent Disks)?
- A) Provides power to the computer
- B) Converts digital signals into analog signals
- C) Stores data permanently
- D) Improves data storage reliability and performance
- Answer: D) Improves data storage reliability and performance
- Question: Which component is responsible for connecting the computer to a high-speed internet connection?
- A) Modem
- B) NIC (Network Interface Card)
- C) Router
- D) Switch
- Answer: B) NIC (Network Interface Card)
- Question: What is the purpose of a sound card in a computer system?
- A) Executes instructions and performs calculations
- B) Stores data temporarily
- C) Provides audio output
- D) Provides power to other components
- Answer: C) Provides audio output
- Question: Which component is responsible for providing a stable power supply to the computer?
- A) PSU (Power Supply Unit)
- B) UPS (Uninterruptible Power Supply)
- C) Motherboard
- D) CPU (Central Processing Unit)
- Answer: A) PSU (Power Supply Unit)
- Question: What is the purpose of BIOS (Basic Input Output System)?
- A) Converts digital signals into analog signals
- B) Provides power to the computer
- C) Executes instructions and performs calculations
- D) Initializes hardware components and loads the operating system
- Answer: D) Initializes hardware components and loads the operating system
- Question: Which component is responsible for providing temporary storage for frequently accessed data and instructions in a computer system?
- A) RAM (Random Access Memory)
- B) ROM (Read-Only Memory)
- C) Hard Disk
- D) SSD (Solid State Drive)
- Answer: A) RAM (Random Access Memory)
- Question: What is the purpose of a router in a computer network?
- A) Connects multiple devices within a network
- B) Converts digital signals into analog signals
- C) Provides power to the computer
- D) Stores data permanently
- Answer: A) Connects multiple devices within a network
- Question: Which component is responsible for providing a stable clock signal to synchronize operations within the computer system?
- A) Clock Generator
- B) BIOS (Basic Input Output System)
- C) CPU (Central Processing Unit)
- D) GPU (Graphics Processing Unit)
- Answer: A) Clock Generator
- Question: What is the purpose of an optical drive in a computer system?
- A) Provides power to the computer
- B) Stores data permanently
- C) Reads data from and writes data to optical discs
- D) Connects the computer to a network
- Answer: C) Reads data from and writes data to optical discs
- Question: Which component is responsible for converting digital signals from the computer into analog signals for output to a display device such as a monitor?
- A) DAC (Digital-to-Analog Converter)
- B) ADC (Analog-to-Digital Converter)
- C) GPU (Graphics Processing Unit)
- D) CPU (Central Processing Unit)
- Answer: C) GPU (Graphics Processing Unit)
- Question: What is the purpose of a UPS (Uninterruptible Power Supply)?
- A) Provides power to the computer
- B) Converts digital signals into analog signals
- C) Connects the computer to a network
- D) Provides power to the computer during a power outage
- Answer: D) Provides power to the computer during a power outage
- Question: Which component is responsible for connecting external devices such as keyboards, mice, and printers to a computer?
- A) USB Port
- B) VGA Port
- C) HDMI Port
- D) Ethernet Port
- Answer: A) USB Port
- Question: What is the purpose of a heat sink in a computer system?
- A) Provides power to the CPU
- B) Cools the CPU to prevent overheating
- C) Stores BIOS settings
- D) Handles graphics rendering and processing
- Answer: B) Cools the CPU to prevent overheating
- Question: Which type of memory is volatile and loses its data when the power is turned off?
- A) RAM (Random Access Memory)
- B) ROM (Read-Only Memory)
- C) Cache Memory
- D) Virtual Memory
- Answer: A) RAM (Random Access Memory)
- Question: Which component is responsible for converting digital data from the computer into analog signals for output to speakers or headphones?
- A) DAC (Digital-to-Analog Converter)
- B) ADC (Analog-to-Digital Converter)
- C) GPU (Graphics Processing Unit)
- D) CPU (Central Processing Unit)
- Answer: A) DAC (Digital-to-Analog Converter)
- Question: What is the purpose of RAID (Redundant Array of Independent Disks)?
- A) Provides power to the computer
- B) Converts digital signals into analog signals
- C) Stores data permanently
- D) Improves data storage reliability and performance
- Answer: D) Improves data storage reliability and performance
- Question: Which component is responsible for connecting the computer to a high-speed internet connection?
- A) Modem
- B) NIC (Network Interface Card)
- C) Router
- D) Switch
- Answer: B) NIC (Network Interface Card)
- Question: What is the purpose of a sound card in a computer system?
- A) Executes instructions and performs calculations
- B) Stores data temporarily
- C) Provides audio output
- D) Provides power to other components
- Answer: C) Provides audio output
- Question: Which component is responsible for providing a stable power supply to the computer?
- A) PSU (Power Supply Unit)
- B) UPS (Uninterruptible Power Supply)
- C) Motherboard
- D) CPU (Central Processing Unit)
- Answer: A) PSU (Power Supply Unit)
- Question: What is the purpose of BIOS (Basic Input Output System)?
- A) Converts digital signals into analog signals
- B) Provides power to the computer
- C) Executes instructions and performs calculations
- D) Initializes hardware components and loads the operating system
- Answer: D) Initializes hardware components and loads the operating system
These questions cover various aspects of computer hardware, including components, functions, and terminology.
