osi layer

The OSI Layer (Open System Interconnect) is like a stack of layers that help computers understand each other better. Imagine it like a cake, each layer is like a piece of the cake.

The first layer is the Application layer. This is the top layer, which is like the icing on the cake. It is the layer with which we humans interact with to do things online like look up websites and send emails.

The second layer is the Presentation layer. This layer makes sure all data looks nice and is in the right format before it can be sent over the internet. This is like the cake itself.

The third layer is the Session layer. The Session layer helps the computers keep track of their conversations. It is like the cherry on top of the cake.

The fourth layer is the Transport layer. The Transport layer is like the filling of the cake and helps ensure that the data gets from one computer to the other in one piece.

The fifth layer is the Network layer. This layer helps computers find each other across the world so that they can talk to each other. It's like the layer of jam inside the cake that holds it all together.

The sixth layer is the Data Link layer. This layer takes the pieces the Network layer created and puts them together into bigger chunks for easier sending. It is like layering each slice of the cake so that it is easier to cut once it's all put together.

The seventh layer is the Physical layer. This layer helps make sure that computers can send and receive data. It is like the plate that the cake is on.

The OSI layer makes sure Internet traffic runs smoothly and securely!