Quick Answer: What Is Data Communication With Example?

Why is data communication important?

All in all, data communication allows businesses to reduce expenses and improve efficiency by sharing data and common equipment among many different computers.

At the same time, the network may be connected through cables, telephone lines, infrared beams, which is cheaper and helps to reduce the expenses..

What is data communication model?

The OSI Reference Model contains seven layers that define the functions of data communications protocols. … Each layer of the OSI model represents a function performed when data is transferred between cooperating applications across an intervening network.

What is the use of data communication?

Applications of Communication & Computer Network Resource sharing such as printers and storage devices. Exchange of information by means of e-Mails and FTP. Information sharing by using Web or Internet. Interaction with other users using dynamic web pages.

What are the 4 types of networks?

11 Types of Networks in Use TodayPersonal Area Network (PAN) … Local Area Network (LAN) … Wireless Local Area Network (WLAN) … Campus Area Network (CAN) … Metropolitan Area Network (MAN) … Wide Area Network (WAN) … Storage-Area Network (SAN) … System-Area Network (also known as SAN)More items…•

What is data communication and its types?

Data communications are the exchange of data between two devices via some form of transmission medium such as a wire cable. For data communications to occur, the communicating devices must be part of a communication system made up of a combination of hardware (physical equipment) and software (programs).

What is communication in computer?

Computer communications describes a process in which two or more computers or devices transfer data, instructions, and information. … A sending device that initiates an instruction to transmit data, instructions, or information. A communications device that connects the sending device to a communications channel.

What are the 4 basic elements of communication?

The communication process is made up of four key components. Those components include encoding, medium of transmission, decoding, and feedback. There are also two other factors in the process, and those two factors are present in the form of the sender and the receiver.

What are the basics of data communication?

There are five important components in every Data Communication system . They are (i)Messages (ii)Sender (iii)Receiver (iv)Medium and (v)Protocols. Message: The message is the data information to be communicated. It can be either text, numbers or audio or video or any combination of these types.

What is the definition of data?

Data are characteristics or information, usually numerical, that are collected through observation. In a more technical sense, data are a set of values of qualitative or quantitative variables about one or more persons or objects, while a datum (singular of data) is a single value of a single variable.

What is Data & Information?

Difference Between Data and InformationDataInformationData is an individual unit that contains raw material which does not carry any specific meaning.Information is a group of data that collectively carry a logical meaning.Data doesn’t depend on information.Information depends on data.4 more rows

What is data communication protocol?

A communication protocol is a system of rules that allow two or more entities of a communications system to transmit information via any kind of variation of a physical quantity. The protocol defines the rules, syntax, semantics and synchronization of communication and possible error recovery methods.

What is data communication explain?

Data Communication is defined as exchange of data between two devices via some form of transmission media such as a cable, wire or it can be air or vacuum also.

What is delivery in data communication?

Delivery. The system must deliver data to the correct destination. … Data delivered late are useless. In the case of video and audio, timely delivery means delivering data as they are produced, in the same order that they are produced, and without significant delay. This kind of delivery is called real-time transmission.

How many types of communication networks are there?

5 typesCommunication Networks can be of following 5 types: Local Area Network (LAN) Metropolitan Area Network (MAN) Wide Area Network (WAN)

What are the features of effective communication?

The 7 characteristics of effective communicationCompleteness. Effective communications are complete, i.e. the receiver gets all the information he needs to process the message and take action. … Conciseness. Conciseness is about keeping your message to a point. … Consideration. … Concreteness. … Courtesy. … Clearness. … Correctness.