📖 1. Introduction (परिचय)
Hindi:
आज के समय में कंप्यूटर ज्ञान हर competitive exam के लिए आवश्यक हो गया है। SSC, Railway, Banking और UPSC परीक्षाओं में Computer Awareness से सीधे प्रश्न पूछे जाते हैं।
English:
In today’s world, computer knowledge is essential for all competitive exams. Questions related to computer awareness are frequently asked in SSC, Railway, Banking, and UPSC exams.
💻 2. What is Computer? (कंप्यूटर क्या है?)
📌 Definition
Hindi:
कंप्यूटर एक इलेक्ट्रॉनिक मशीन है जो इनपुट लेती है, उसे प्रोसेस करती है और आउटपुट देती है।
English:
A computer is an electronic device that takes input, processes it, and produces output.
🔄 Basic Working Cycle
Input → Process → Output → Storage
🧠 3. Components of Computer (मुख्य भाग)
ComponentFunctionInput UnitData inputCPUProcessingOutput UnitResult displayMemoryStorage
⌨️ 4. Input Devices (इनपुट डिवाइस)
📌 Definition
Hindi:
वे उपकरण जिनसे हम कंप्यूटर में डेटा डालते हैं।
English:
Devices used to enter data into a computer.
🔹 Examples
- Keyboard
- Mouse
- Scanner
- Microphone
- Webcam
🎯 Key Points
- Keyboard → most common
- Mouse → pointing device
- Scanner → converts hard copy to soft copy
🖥️ 5. Output Devices (आउटपुट डिवाइस)
📌 Definition
Hindi:
वे उपकरण जो परिणाम दिखाते हैं।
English:
Devices that display results.
🔹 Examples
- Monitor
- Printer
- Speaker
- Projector
🎯 Key Points
- Monitor = Soft copy
- Printer = Hard copy
🧠 6. CPU (Central Processing Unit)
📌 Definition
Hindi:
CPU कंप्यूटर का दिमाग होता है।
English:
CPU is the brain of the computer.
🔧 Parts of CPU
PartFunctionALUArithmetic calculationsCUControl unitRegistersTemporary storage
🎯 Key Points
- ALU → calculations
- CU → control operations
💾 7. Memory (मेमोरी)
📌 Definition
Hindi:
मेमोरी वह स्थान है जहाँ डेटा स्टोर होता है।
English:
Memory is the storage area for data.
🔹 Types of Memory
1. Primary Memory
- RAM
- ROM
🔸 RAM (Random Access Memory)
Hindi:
- Temporary memory
- Volatile
English:
- Temporary memory
- Data lost when power off
🔸 ROM (Read Only Memory)
Hindi:
- Permanent memory
- Non-volatile
English:
- Permanent storage
2. Secondary Memory
- Hard Disk
- SSD
- Pen Drive
- CD/DVD
🎯 Key Points
- RAM = Fast but temporary
- ROM = Permanent
- Secondary = Large storage
🧠 8. Hardware vs Software
🔹 Hardware
Hindi:
जो हम छू सकते हैं
English:
Physical components
🔹 Software
Hindi:
Programs और applications
English:
Programs that run on hardware
🔹 Types of Software
- System Software (OS)
- Application Software
🧠 9. Important Computer Terms
TermMeaningBitSmallest unitByte8 bitsKB1024 bytesMB1024 KBGB1024 MB
🌐 10. Internet Basics
📌 Definition
Hindi:
Internet एक वैश्विक नेटवर्क है
English:
Internet is a global network
🔹 Important Terms
- WWW (World Wide Web)
- HTTP
- URL
- Browser
🎯 11. Exam-Oriented Facts
- CPU = Brain
- RAM = Volatile
- ROM = Non-volatile
- Keyboard = Input
- Monitor = Output
🧪 12. MCQs Practice
Q1. CPU का फुल फॉर्म क्या है?
A. Central Process Unit
B. Central Processing Unit ✅
C. Computer Processing Unit
D. Central Power Unit
Q2. RAM कैसी memory है?
A. Permanent
B. Temporary ✅
C. Secondary
D. External
Q3. Keyboard क्या है?
A. Output
B. Input ✅
C. Memory
D. CPU
Q4. Printer क्या देता है?
A. Soft copy
B. Hard copy ✅
C. Memory
D. Input
Q5. ROM क्या है?
A. Temporary
B. Permanent ✅
C. Volatile
D. Input
📌 13. Previous Year Trends
Hindi:
SSC/Railway में पूछा जाता है:
- RAM vs ROM
- CPU parts
- Input/Output devices
English:
Frequently asked:
- RAM vs ROM
- CPU parts
- Devices
🔚 14. Conclusion
Hindi:
Computer basics हर exam के लिए जरूरी है और इसे अच्छे से समझना scoring section बन सकता है।
English:
Computer basics are essential for all exams and can be a scoring section.