What is OSI Model? Networking, Systems Design, Quick Explanation
The OSI model describes how a data transfers over the network from one computer to the other and the way that the systems send information to one another. In order to accomplish successful communication between computers, there are 7 distinct layers which are interconnected and which work closely to make the communication happen, that is why it is called the open system interconnection model or the OSI seven layer model or open system.
The purpose of this model is to enable functionality and interoperability between different vendors and connectors. From a design point of view, it divides larger tasks into smaller, more manageable ones. The seven Layers of OSI model are
Layer 1 - Physical Layer
Layer 2 - Data Link Layer
Layer 3 - Network Layer
Layer 4- Transport Layer
Layer 5- Session Layer
Layer 6 - Presentation Layer
Layer 7 - Application Layer
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