IT Topic4

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Saturday, 15 February 2020

OSI Model

The OSI Model

Open Systems Interconnection
*Standard Model for Data Communications
*Specified by International Standards Organization (ISO)
*Adopted by CCITT/ITU
*Official Model Explained in X.200 Series

Layered Approach to Communications
*Seven Layers Altogether
*Each Layer Performs a Unique Function
*Each Layer Has Its Own Protocol
*Protocol Messages in Upper Layer is Data to Layer Below

The Seven Layers

The Standards

1 comment:

Thanks You....