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COMMUNICATION HARDWARE&

COMMUNICATION SOFTWARE

Submitted To:-

Deepjyoti Choudhury

Associate ProfessorSubmitted By:-Surajit NathRoll No. 251st Semester

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INTRODUCTION

• The term communication in simple words means sending or receiving information.

• ANCIENT TIMES – • Beating drums• Smoke signals• Mirrors reflecting sunlight

• The advancement of computer networks and later internet acted as a boost for data communication.

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DATA COMMUNICATION

• Exchange of data between two devices using some form of wired or wireless transmission medium.

• Data communication consist of following concepts

• Communication system• Communication channel• Communication processors

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COMMUNICATION SYSTEM

• The collection of hardware and software that facilitates intersystem exchange of information between different devices.

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COMMUNICATION CHANNEL

• Communication channel is a pathway over which information can be conveyed. It may be defined by a physical wire that connects communicating devices, or a radio, laser, or other radiated energy source that has no obvious physical presence.

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COMMUNICATION PROCESSORS

• Communication processor is an obsolete term for a specialized I/O processor that is used to control a number of communication lines and/or communication

devices.

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COMMUNICATION HARDWARE

• Communication hardware as the name suggests it refers to those physical components that help in the flow of data from one resource point to another.

• Consist of following points• Communication channel• Communication channel media• Channel interface devices• Communication Protocol

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COMMUNICATION CHANNEL

• A communication channel, or channel, refers either to a physical transmission medium such as a wire or to a logical connection over a multiplexed medium such as a radio channel etc.

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Channel Characteristics

• Channel bandwidth• Channel Capacity• Transmission Time• Propagation Time

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CHANNEL MEDIA

• Communication channel media refers to those physical or virtual connections through which communication signals are transferred from one location to another.

• Two types of media• Guided media• Unguided Media

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CHANNEL INTERFACE DEVICES

• Communication channel interface devices refer to those devices that send and receive communication signals from one place to another.

• Examples are Router Modem etc.

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COMMUNICATION PROTOCOL

• A communications protocol is a formal description of digital message formats and the rules for exchanging those messages in or between computing systems

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COMMUNICATION SOFTWARE

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TERMINAL EMALUATION SOFTWARE

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MULTI USER SOFTWARE

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