Are you preparing for SSC, Banking, UPSI, STENO, or Computer Operator exams?
Here are 10 important descriptive type Computer Awareness questions and answers specially prepared for competitive exams. These questions are useful for written exams, mains exams, and interview preparation.
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1. Explain the basic components of a computer system.
A computer system mainly consists of three basic components:
Input Unit – Used to enter data (Keyboard, Mouse, Scanner)
Central Processing Unit (CPU) – Processes instructions and controls operations
ALU (Arithmetic Logic Unit)
Control Unit
Output Unit – Displays the result (Monitor, Printer, Speaker)
These components work together to perform data processing efficiently.
2. What is an Operating System? Explain its functions.
An Operating System (OS) is system software that acts as an interface between the user and computer hardware.
Main functions:
Process Management
Memory Management
File System Management
Device Management
Security and User Management
Examples: Windows, Linux, macOS.
3. What is the difference between RAM and ROM?
RAM (Random Access Memory):
Volatile memory
Temporary storage
Data lost when power is off
ROM (Read Only Memory):
Non-volatile memory
Permanent storage
Stores booting instructions
RAM is used for current processing, while ROM stores permanent instructions.
4. Explain the types of computer memory.
Computer memory is classified into:
Primary Memory
RAM
ROM
Secondary Memory
Hard Disk
SSD
CD/DVD
Pen Drive
Primary memory is faster, while secondary memory stores large data permanently.
5. What is the Internet? Explain its uses.
The Internet is a global network of interconnected computers.
Uses:
Communication (Email, Video Calls)
Online Education
Banking & E-commerce
Information Search
Social Media
It plays a vital role in modern communication and business.
6. What is DBMS? Explain its advantages.
DBMS (Database Management System) is software used to manage and organize data.
Advantages:
Reduces data redundancy
Improves data security
Enables data sharing
Maintains data consistency
Examples: MySQL, Oracle, SQL Server.
7. Explain the concept of Cloud Computing.
Cloud Computing is a technology that provides computing services (storage, servers, software) over the Internet.
Types:
Public Cloud
Private Cloud
Hybrid Cloud
Benefits:
Cost-effective
Scalable
Remote access
8. What is Cyber Security?
Cyber Security refers to protecting computer systems and networks from digital attacks.
Common threats:
Viruses
Malware
Phishing
Hacking
It ensures data protection, privacy, and secure communication.
9. What is the difference between LAN, MAN, and WAN?
LAN (Local Area Network):
Small geographical area (office, school)
MAN (Metropolitan Area Network):
Covers a city
WAN (Wide Area Network):
Covers large areas or countries
The Internet is the biggest example of WAN.
10. What is Artificial Intelligence (AI)?
Artificial Intelligence is the simulation of human intelligence by machines.
Applications:
Chatbots
Self-driving cars
Voice assistants
Medical diagnosis
AI helps machines learn, reason, and make decisions.
🔥 Why These Descriptive Questions Are Important?
✔ Frequently asked in Mains Exams
✔ Useful for Computer Operator & Banking Exams
✔ Important for Interview Preparation
✔ Helps in conceptual clarity
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👉 https://www.computergs.online
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