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General features and tasks of communication system A communication system is a system for transmitting information from a sender to a receiver. The main features of a communication system are: 1.A source of information: This is the sender of the message. 2.A transmitter: This is the device or system that encodes the message and converts it into a form that can be transmitted. 3.A channel: This is the medium through which the message is transmitted, such as a wire, cable, or wireless connection. ...

General features and tasks of communication system A communication system is a system for transmitting information from a sender to a receiver. The main features of a communication system are: 1.A source of information: This is the sender of the message. 2.A transmitter: This is the device or system that encodes the message and converts it into a form that can be transmitted. 3.A channel: This is the medium through which the message is transmitted, such as a wire, cable, or wireless connection. ...

Application Layer An application layer is the topmost layer within the TCP/IP model. When one application layer protocol needs to communicate with another application layer, it forwards its information to the transport layer. Transport Layer It is responsible for the reliability, flow control, and correction of data that is being sent over the network. There are two protocols used in this layer are User Datagram Protocol and Transmission control protocol. Internet/Network Layer It is the third l...

UNIT 3 Data communication concepts: Types of signals encoding and decoding techniques, signal bandwidth requirements, signal formats used in LAN., switchingandbroadcasttechniques, modulation, multiplexing, switching, networkprotocols. Data communication involves the transmission of digital data over a communication channel. The types of signals used in data communication include analog and digital signals. Analog signals are continuous in nature and are used in radio and television transmission,...

COMPUTER COMMUNICATION AND NETWORKS ENCODING TECHNIQUES Encoding • Coding is the process of embedding clocks into a given data stream and producing a signal that can be transmitted over a selected medium. • Transmitter is responsible for "encoding" i.e. inserting clocks into data according to a selected coding scheme • Receiver is responsible for "decoding" i.e. separating clocks and data from the incoming embedded stream. • Systems that use coding are synchronous syste...

COMPUTER NETWORK - UNIT IV 1 Error :-  An error occurs when the output information does not match the input information.  The interfaces can change the shape of a signal and such changes can alter the meaning of data.  An error is a situation when data received at the destination machine is not the same as data that is actually sent by the source machine.  Types of Errors  Basically, there are two types of errors that can occur during the transmission of data. The typ...

What is Topology? o Network topologies describe the methods in which all the elements of a network are mapped. The topology term refers to both the physical and logical layout of a network. o Network topologies refer to the arrangement and connection patterns of computers in the network. o It is the physical layout of the terminals, links, and computers in the network. o Network topology can be defined as the cabling structure or geographical arrangement of computers in the network. o...

What is Topology? o Network topologies describe the methods in which all the elements of a network are mapped. The topology term refers to both the physical and logical layout of a network. o Network topologies refer to the arrangement and connection patterns of computers in the network. o It is the physical layout of the terminals, links, and computers in the network. o Network topology can be defined as the cabling structure or geographical arrangement of computers in the network. o...

cOMPUTER NETWORKS NOTES EXPLAIN OSI MODEL SNA MODEL TCP/IP MODEL ERROR AND DETECTION TECTNIQUES AND CSMACD , CSMA/CA AND HAMMING CODES ,TOPOLOGY , TRANSMISSION MEDIA,ETC