Basic Computer Components & Functions MCQs with Answers
What is the main function of the CPU?
a) Storing data
b) Processing instructions
c) Displaying output
d) Transmitting data
Which of the following is considered the brain of the computer?
a) RAM
b) Hard Drive
c) CPU
d) Monitor
What is the primary function of the RAM in a computer?
a) To store data permanently
b) To process instructions
c) To provide temporary data storage
d) To manage power consumption
Which component is responsible for storing data permanently on a computer?
a) CPU
b) RAM
c) Hard Drive
d) Power Supply
Which of these components helps in displaying output on a screen?
a) CPU
b) GPU
c) RAM
d) Motherboard
What is the primary function of the motherboard?
a) To provide a display for the user
b) To connect all components of the computer
c) To store data permanently
d) To cool the computer’s internal components
Which device is used to input data into a computer?
a) Printer
b) Monitor
c) Keyboard
d) Speaker
What does the power supply unit (PSU) provide for the computer?
a) Storage for data
b) Cooling for the CPU
c) Power to the internal components
d) Connection to the internet
Which of these is an input device?
a) Monitor
b) Keyboard
c) Printer
d) Speaker
What does a computer’s storage device do?
a) Process data
b) Display data
c) Store data permanently
d) Provide power
Which of the following is the main function of the operating system?
a) Process data
b) Manage hardware and software resources
c) Connect to the internet
d) Provide temporary storage
Which of these is an example of an output device?
a) Keyboard
b) Mouse
c) Printer
d) Scanner
Which of the following is the function of a cooling fan in a computer?
a) To store data
b) To cool the internal components
c) To display images
d) To process instructions
Which of these components is responsible for managing the computer’s memory?
a) RAM
b) CPU
c) Motherboard
d) Operating System
What is the function of the network card in a computer?
a) Store data
b) Process data
c) Enable communication with other computers
d) Display graphics
What type of device is a printer?
a) Input device
b) Output device
c) Storage device
d) Processing device
What does the BIOS (Basic Input/Output System) do?
a) Stores user files
b) Controls the communication between hardware and software
c) Provides power to the computer
d) Stores operating system files
What does the hard disk drive (HDD) store?
a) Temporary data
b) Permanent data
c) Power for the computer
d) Software applications only
What does the CPU’s ALU (Arithmetic Logic Unit) do?
a) Store data
b) Perform arithmetic and logic operations
c) Provide power to the computer
d) Manage the memory
Which of the following components is responsible for controlling the flow of data between the CPU and other parts of the computer?
a) RAM
b) Power Supply
c) Bus
d) GPU
Which of the following components is used to process graphical data?
a) CPU
b) GPU
c) RAM
d) Motherboard
Which of the following is responsible for managing the computer’s internal clock?
a) BIOS
b) CPU
c) RAM
d) Power Supply
Which part of the computer is responsible for handling data and instructions from external devices?
a) CPU
b) RAM
c) Input/Output Ports
d) Storage Drive
Which of the following is a permanent storage medium?
a) RAM
b) ROM
c) CPU
d) Cache
What is the main function of the cache memory in a computer?
a) Store data permanently
b) Store frequently accessed data to speed up processing
c) Provide backup power
d) Store system files
Which of these devices is used for permanent data storage?
a) RAM
b) SSD
c) CPU
d) GPU
Which of these is responsible for converting digital data into analog signals for transmission?
a) Modem
b) Monitor
c) CPU
d) Printer
What is the function of the computer’s clock speed?
a) It determines how much storage the computer has
b) It determines the speed at which the CPU processes instructions
c) It manages the data flow between devices
d) It stores operating system files
What is the role of the RAM in a computer’s performance?
a) It permanently stores data
b) It temporarily stores data to be accessed quickly
c) It manages the operating system
d) It connects the CPU with peripherals
What does the GPU (Graphics Processing Unit) do?
a) Stores data
b) Executes instructions
c) Handles graphical computations and rendering
d) Manages network connections
What does an optical drive (CD/DVD) do?
a) Stores volatile data
b) Reads and writes data on optical discs
c) Displays graphics on a screen
d) Sends data over a network