Q.1 Which of the following is considered the brain of the computer?
RAM
CPU
Hard Disk
Motherboard
Explanation - The CPU (Central Processing Unit) performs all processing and calculations in a computer, hence called the brain.
Correct answer is: CPU
Q.2 Which of these is a type of non-volatile memory?
RAM
ROM
Cache
Registers
Explanation - ROM (Read-Only Memory) retains data even when the computer is turned off, making it non-volatile.
Correct answer is: ROM
Q.3 Which of the following is an input device?
Monitor
Printer
Keyboard
Speaker
Explanation - A keyboard is used to input data into a computer.
Correct answer is: Keyboard
Q.4 Which device is used for permanent storage of data?
RAM
ROM
Hard Disk
Cache Memory
Explanation - Hard Disk provides permanent storage of data which remains even after the computer is turned off.
Correct answer is: Hard Disk
Q.5 What does BIOS stand for?
Basic Input Output System
Binary Input Output System
Basic Internal Operating System
Binary Internal Output System
Explanation - BIOS is firmware that initializes and tests hardware during startup.
Correct answer is: Basic Input Output System
Q.6 Which of the following is an example of application software?
Windows OS
MS Word
Linux OS
Device Drivers
Explanation - MS Word is application software used for word processing.
Correct answer is: MS Word
Q.7 Which type of computer memory is fastest?
ROM
RAM
Cache Memory
Hard Disk
Explanation - Cache memory is faster than RAM and is used to store frequently accessed data for quicker processing.
Correct answer is: Cache Memory
Q.8 Which of these is not an output device?
Monitor
Printer
Keyboard
Plotter
Explanation - Keyboard is used to input data, not output.
Correct answer is: Keyboard
Q.9 Which of the following is an example of secondary storage?
RAM
Hard Disk
Registers
Cache Memory
Explanation - Hard Disk is secondary storage used for long-term data retention.
Correct answer is: Hard Disk
Q.10 What is the full form of URL?
Uniform Resource Locator
Universal Resource Link
Uniform Reference Link
Universal Reference Locator
Explanation - URL is the address used to access resources on the internet.
Correct answer is: Uniform Resource Locator
Q.11 Which is the main circuit board in a computer called?
CPU
Motherboard
RAM
ROM
Explanation - The motherboard connects all components of a computer and allows communication between them.
Correct answer is: Motherboard
Q.12 Which language is closest to the hardware?
High-Level Language
Assembly Language
Machine Language
Python
Explanation - Machine language consists of binary code and is directly executed by the CPU.
Correct answer is: Machine Language
Q.13 Which of these is an example of open-source software?
MS Windows
Linux
Adobe Photoshop
MS Office
Explanation - Linux is an open-source operating system whose source code is freely available.
Correct answer is: Linux
Q.14 What does GUI stand for in computer terminology?
Graphical User Interface
General User Interface
Graphic Utility Interface
General Utility Interaction
Explanation - GUI allows users to interact with computers using graphical icons rather than text commands.
Correct answer is: Graphical User Interface
Q.15 Which of the following is an example of volatile memory?
ROM
RAM
Hard Disk
Flash Memory
Explanation - RAM loses its content when the power is turned off, hence it is volatile.
Correct answer is: RAM
Q.16 Which device is primarily used to connect a computer to a network?
Router
Monitor
Keyboard
Printer
Explanation - A router is used to connect multiple devices to a network, including the internet.
Correct answer is: Router
Q.17 Which among the following is a high-level programming language?
C
Assembly
Machine Language
Binary Code
Explanation - C is a high-level language that is closer to human understanding and needs a compiler to convert into machine code.
Correct answer is: C
Q.18 Which part of the computer is responsible for temporary storage of data?
ROM
RAM
Hard Disk
Motherboard
Explanation - RAM temporarily stores data and instructions that the CPU needs while performing tasks.
Correct answer is: RAM
Q.19 Which of the following is not a type of computer network?
LAN
WAN
MAN
PANDA
Explanation - LAN, WAN, and MAN are types of networks; PANDA is unrelated.
Correct answer is: PANDA
Q.20 Which among the following is used to connect computers over long distances?
LAN
WAN
PAN
MAN
Explanation - WAN (Wide Area Network) is used to connect computers over large geographic areas.
Correct answer is: WAN
Q.21 Which of these is used to convert digital signals to analog signals for transmission over telephone lines?
Router
Modem
Switch
Hub
Explanation - A modem modulates digital signals into analog signals and demodulates them back.
Correct answer is: Modem
Q.22 Which of the following is the primary function of the operating system?
To process data
To manage hardware and software resources
To store data permanently
To provide internet access
Explanation - The OS manages computer hardware and software resources and provides services for programs.
Correct answer is: To manage hardware and software resources
Q.23 What is the full form of IP in networking?
Internet Protocol
Internal Process
Interface Protocol
Internet Program
Explanation - IP is used to identify devices on a network and route data between them.
Correct answer is: Internet Protocol
Q.24 Which memory type is directly accessible by the CPU without any intermediate storage?
Cache
RAM
ROM
Hard Disk
Explanation - Cache memory stores frequently used data for fast access by the CPU.
Correct answer is: Cache
Q.25 Which of the following is a markup language used to create web pages?
HTML
C++
Python
Java
Explanation - HTML (HyperText Markup Language) is used to structure content on web pages.
Correct answer is: HTML