Practice Question on Computer Hardware
Q1 Which of the following is considered as the brain of the computer?
a) RAM
b) CPU
c) Hard Disk
d) Motherboard
Answer: b) CPU
Q2 What is the main function of the ALU (Arithmetic Logic Unit)?
a) Performs arithmetic and logic operations
b) Stores data and instructions
c) Controls input and output devices
d) Manages memory
Answer: a) Performs arithmetic and logic operations
Q3 What type of memory is non-volatile and can be electrically erased and reprogrammed?
a) RAM
b) ROM
c) Flash Memory
d) Cache Memory
Answer: c) Flash Memory
Q4 Which computer port is used to connect musical instruments?
a) USB
b) HDMI
c) MIDI
d) VGA
Answer: c) MIDI
Q5 Which component of the computer provides power to all other parts?
a) Motherboard
b) Hard Disk Drive
c) Power Supply Unit
d) RAM
Answer: c) Power Supply Unit
Q6 The capacity of a hard disk is usually measured in what?
a) Gigabytes
b) Megahertz
c) Watts
d) Decibels
Answer: a) Gigabytes
Q6 What does the CPU cooler do?
a) It cools the power supply
b) It cools the CPU
c) It warms the CPU
d) It warms the power supply
Answer: b) It cools the CPU
Q7 What component is responsible for the permanent storage of data?
a) RAM
b) CPU
c) Hard Disk Drive
d) Power Supply Unit
Answer: c) Hard Disk Drive
Q8 What does GPU stand for?
a) General Processing Unit
b) Graphics Processing Unit
c) Great Performance Unit
d) Generic Programming Unit
Answer: b) Graphics Processing Unit
Q9 Which of the following is an input device?
a) Monitor
b) Printer
c) Keyboard
d) Speaker
Answer: c) Keyboard
Q10 What type of cable is used to connect a computer to a network?
a) HDMI
b) Ethernet
c) VGA
d) USB
Answer: b) Ethernet
Q11 What does BIOS stand for?
a) Binary Input Output System
b) Basic Integrated Operating System
c) Basic Input Output System
d) Binary Integrated Operating System
Answer: c) Basic Input Output System
Q12 Which of the following is not a type of motherboard expansion slot?
a) PCIe
b) PCI
c) AGP
d) CPU
Answer: d) CPU
Q13 Which technology is used to touch screen displays?
a) Resistive
b) Capacitive
c) Both a and b
d) None of the above
Answer: c) Both a and b
Q14 Which of the following is an example of optical storage?
a) SSD
b) DVD
c) USB
d) RAM
Answer: b) DVD
Q15 In which of these is volatile memory found?
a) ROM
b) Hard Disk
c) RAM
d) Flash Drive
Answer: c) RAM
Q16 What is a pixel?
a) A type of digital camera
b) The smallest controllable element of a picture represented on a screen
c) A measurement of computer memory
d) A programming language
Answer: b) The smallest controllable element of a picture represented on a screen
Q17 What is a main function of the computer case?
a) To house the CPU
b) To provide power to the computer
c) To house and protect computer components
d) To connect peripherals
Answer: c) To house and protect computer components
Q18 What does USB stand for?
a) Universal Serial Bus
b) Unified Signal Bandwidth
c) Unlimited Storage Bank
d) User Serviceable Base
Answer: a) Universal Serial Bus
Q19 What is the primary purpose of an operating system?
a) To provide an interface for users to interact with the computer
b) To manage the computer’s hardware resources
c) To run applications
d) All of the above
Answer: d) All of the above