OSI Model
,• OSI stands for Open System Interconnection is a reference
model that describes how information from a software
application in one computer moves through a physical
medium to the software application in another computer.
• OSI consists of seven layers, and each layer performs a
particular network function.
• OSI model was developed by the International
Organization for Standardization (ISO) in 1984, and it is
now considered as an architectural model for the inter-
computer communications.
• OSI model divides the whole task into seven smaller and
manageable tasks. Each layer is assigned a particular task.
• Each layer is self-contained, so that task assigned to each
layer can be performed independently.
, What is the OSI Model?
The first three layers are known as the software layer, and the last 3 layers are known as
the hardware layer. The transport layer is the heart of the OSI model. The data is sent through
the physical layer to the application layer (at the sender's end). On the other hand, the data is
received through the application layer to the physical layer (at the receiver's end).
,• OSI stands for Open System Interconnection is a reference
model that describes how information from a software
application in one computer moves through a physical
medium to the software application in another computer.
• OSI consists of seven layers, and each layer performs a
particular network function.
• OSI model was developed by the International
Organization for Standardization (ISO) in 1984, and it is
now considered as an architectural model for the inter-
computer communications.
• OSI model divides the whole task into seven smaller and
manageable tasks. Each layer is assigned a particular task.
• Each layer is self-contained, so that task assigned to each
layer can be performed independently.
, What is the OSI Model?
The first three layers are known as the software layer, and the last 3 layers are known as
the hardware layer. The transport layer is the heart of the OSI model. The data is sent through
the physical layer to the application layer (at the sender's end). On the other hand, the data is
received through the application layer to the physical layer (at the receiver's end).
