OSI Model Computer Networking, Study notes of Computer science

OSI Model – Complete Networking Notes These handwritten notes provide a structured and easy-to-understand explanation of the Open Systems Interconnection (OSI) Model, one of the most fundamental concepts in Computer Networks. Topics Covered: • Introduction to the OSI Model and its purpose in network communication. • Detailed explanation of the 7 OSI layers: Physical Layer Data Link Layer Network Layer Transport Layer Session Layer Presentation Layer Application Layer • Encapsulation and decapsulation process with header addition at each layer. • Complete data flow through the OSI model using an email transmission example. • Well-labeled diagrams illustrating layer interactions, packet flow, encapsulation, and delivery mechanisms. These notes are concise, exam-oriented, and supported with diagrams that simplify complex networking concepts, making them suitable for quick revision as well as first-time learning.

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2025/2026

Available from 06/02/2026

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