Osi model presentation pdf file download

Even though the osi model is conceptual, an appreciation of its purpose. It provided the first framework governing how information should be sent across a network. The osi model consists of seven layers, each corresponding to a specific network function. The presentation layer is responsible for translation. Ppt osi model powerpoint presentation free to download. To address the problem of networks increasing in size and in. In the sevenlayer osi model of computer networking, the presentation layer is layer 6 and serves as the data translator for the network.

Also, some of the most popular applications email, file transport, and so on interface with this layer to communicate with other applications on the network. The presentation layer is responsible for the delivery and formatting of information to the. Each osi layer serves a unique task for network communication. The upper four layers of the osi model application, presentation and sessionlayers 7, 6 and 5 are orientated more toward services to the applications. A free powerpoint ppt presentation displayed as a flash slide show on id. The function of each layer should be chosen according to the. The presentation layer is an important layer in the osi model because it is responsible for some of the important services like data conversion, data compression, encryption, and decryption. The presentation layer is also called as the layer 6 of the osi model. Osi model is based on the proposal developed by the. Presentation layer protocols free download as powerpoint presentation. Examples of presentation layer functionality include. An example of a presentation service would be the conversion of an ebcdiccoded text computer file to an asciicoded file. Each layer both performs specific functions to support the layers above it and offers services to the layers below it.

The open systems interconnection osi model is a reference tool for understanding data communications between any two networked systems. It divides the communications processes into seven layers. This layer translates applications into data so it. Presentation layer presentation layer is the sixth layer of osi model. The open systems interconnection osi model is a reference tool for understanding data. Osi model open systems interconnection osi is a set of internationally recognized, nonproprietary standards for networking and for operating system involved in. The presentation layer is the lowest layer at which application programmers consider data structure and presentation, instead of simply sending data in the form of datagrams or packets between hosts.

Pdf the early successes of computer networks in the mid1970s made it apparent that to utilize the full potential of computer. The osi reference model was also recognized by ccitt rapporteurs group on layered model for public data network services. Presentation session transport network data link physical the seven layers of the osi model cont. Osi reference model the open systems interconnection osi model was developed by the international organization for standardization iso, and formalized in 1984. It was designed for data encryption, decryption and compression. To briefly discuss the functions of each layer in the osi model. The osi model was designed in 1977 and is part of the iso specifications since 1984. Presentation layer protocols osi model communications. Osi model layer 6 presentation this lesson focuses on layer 6 of the osi model, which is the presentation layer. Here are the basic functionalities of the presentation layer.