KVS/NVS Computer Literacy hand written notes PDF

📘 KVS / NVS – Basic Computer Literacy Notes

1️⃣ Computer – परिचय (Introduction)

Computer ek electronic machine hai jo data ko input ke roop me leta hai, process karta hai aur output deta hai.

A computer is an electronic device that accepts data as input, processes it and gives meaningful output.

IPO Cycle: Input → Process → Output

2️⃣ Computer ke Pramukh Bhag (Main Parts)

• Input Device – Keyboard, Mouse, Scanner
• CPU – Brain of Computer
• Output Device – Monitor, Printer, Speaker

3️⃣ CPU – Central Processing Unit

CPU ko computer ka mastishk kaha jata hai.

• ALU – Arithmetic Logical Unit
• CU – Control Unit
• Registers – Temporary Memory

4️⃣ Input Devices

• Keyboard – Typing ke liye
• Mouse – Pointer control
• Scanner – Image input
• Microphone – Voice input

5️⃣ Output Devices

• Monitor – Visual Output
• Printer – Hard Copy
• Speaker – Sound Output

6️⃣ Memory – स्मृति

Memory data aur instruction ko store karti hai.

• Primary Memory – RAM, ROM
• Secondary Memory – HDD, SSD, Pen Drive

7️⃣ Hardware & Software

Hardware: Physical parts (Keyboard, CPU)
Software: Programs (Windows, MS Word)

8️⃣ Operating System

Operating System user aur hardware ke beech bridge ka kaam karta hai.

• Windows
• Linux
• Android

9️⃣ Internet – परिचय

Internet duniya bhar ke computers ka network hai.

• Email
• WWW
• Search Engine

🔟 Important Exam Points

• CPU = Brain of Computer
• RAM = Volatile Memory
• ROM = Non-Volatile
• IPO Cycle very important