OSI reference model in computer network in hindi

OSI (Open Systems Interconnection) reference model ek standard hai jo computer network protocols aur communication systems ke design aur functionality ko samajhne aur organize karne ke liye banaya gaya hai. Is model mein, network communication ko saath-saath karna ek series of layers mein divide kiya gaya hai. Har layer apne specific functions aur responsibilities ko handle karti hai.

OSI reference model in computer network in hindi

Cable के बारे मे भी जानें :-

Yeh OSI reference model, International Organization for Standardization (ISO) dwara develop kiya gaya tha. Iska mukhya uddeshya, alag-alag vendors aur protocols ke beech interoperability aur compatibility ko badhava dena tha.

OSI reference model mein, network communication process ko 7 layers mein divide kiya gaya hai, jinhe niche diye gaye hain:

  1. Physical Layer: Yeh layer physical network medium jaise cables, connectors, aur signals se jude hote hain. Isme bit transmission aur physical network characteristics handle kiye jate hain.

  2. Data Link Layer: Yeh layer frames ko transmit karne ke liye logical connections aur error correction mechanisms provide karta hai. Yeh layer data ko packets ya frames mein divide karta hai aur physical addressing ke liye MAC (Media Access Control) address ka istemal karta hai.

  3. Network Layer: Yeh layer logical addressing aur routing ko handle karta hai. Isme IP (Internet Protocol) address ka istemal hota hai aur packets ko source se destination tak transmit karta hai.

  4. Transport Layer: Yeh layer end-to-end communication aur error control ke liye responsible hota hai. Isme TCP (Transmission Control Protocol) aur UDP (User Datagram Protocol) jaise protocols ka istemal hota hai.

  5. Session Layer: Yeh layer communication sessions ko establish, maintain, aur terminate karta hai. Isme session management aur synchronization provide ki jati hai.

  6. Presentation Layer: Yeh layer data representation, encryption, aur decryption ke liye responsible hota hai. Data ko network-friendly format mein convert karta hai aur encryption/decryption ko handle karta hai.

  7. Application Layer: Yeh layer end-user applications aur network communication ke interface ke liye responsible hota hai. Examples include HTTP (Hypertext Transfer Protocol), FTP (File Transfer Protocol), aur SMTP (Simple Mail Transfer Protocol).
OSI reference model in computer network in hindi
OSI reference model in computer network in hindi

Har layer apne specific functions perform karta hai aur unko vertically integrate karke complete network communication process banta hai. OSI reference model, network architecture aur protocols ke design aur development ko standardize karne mein madad karta hai.

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