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Date Submitted: 06/18/2012 05:50 PM
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THE OSI REFERENCE MODEL Assignment 1 Submitted TO Mr: Umair Babar
BY: AHMAD HASSAN USAMA LIYAQAT ISHAQ KHAN
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Introduction
• The OSI Model is a theoretical representation of
what happens between two nodes communicating on a network • It does not prescribe the type of hardware or software that should support each layer • Each layer is reasonably self-contained so that the tasks assigned to each layer can be implemented independently • This enables the solutions offered by one layer to be updated without adversely affecting the other layers
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Introduction
• The OSI Model is a theoretical representation of
what happens between two nodes communicating on a network • It does not prescribe the type of hardware or software that should support each layer • Each layer is reasonably self-contained so that the tasks assigned to each layer can be implemented independently • This enables the solutions offered by one layer to be updated without adversely affecting the other layers
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History.
• • Over the past couple of decades many of the networks that were built used different hardware and software implementations, as a result they were incompatible and it became difficult for networks using different specifications to communicate with each other. To address the problem of networks being incompatible and unable to communicate with each other, the International Organisation for...