Autotracing is a technique for producing a vector image from a bitmapped image. Bitmapped images, which are represented by dots, could have possible grains, halftone dots or other limitations. This can be resolved by converting them into vector images. Autotracing focuses on copying or converting a printable image into an outlined object.
The transport layer is the layer in the open system interconnection (OSI) model responsible for end-to-end communication over a network. It provides logical communication between application processes running on different hosts within a layered architecture of protocols and other network components.
The transport layer is also responsible for the management of error correction, providing quality and reliability to the end user. This layer enables the host to send and receive error corrected data, packets or messages over a network and is the network component that allows multiplexing.
In the OSI model, the transport layer is the fourth layer of this network structure.
Transport layers work transparently within the layers above to deliver and receive data without errors. The send side breaks application messages into segments and passes them on to the network layer. The receiving side then reassembles segments into messages and passes them to the application layer.
The transport layer can provide some or all of the following services:
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