What is the purpose of data communication? Explain the data communication system.

The purpose of data communication is to share the data and information between two or more users through the medium of communication known as the physical layer to connect the users to each other.

Users who can connect to the data communication model need to connect with the computer system, network device, cable and application software for making a model of data communication system.

The data transmission in digital data communication is a term of transmission in three different types of mode : simplex mode of data transmission, half duplex mode of data transmission and full duplex mode of data transmission.

The data communication model is mostly used for major communication systems in the digital term such as TCP/IP and OSI model for digital data communication systems.

Where the TCP is used for providing the connection of four types of layer which is used to make data transmissions between two or more computer systems through the network device.

The TCP model contains the application layer, transport layer, data link layer and physical layer.

Where the application layer is to support the application software and website pages to interact with the user who is connected to the network model of the data communication system.

The transport layer is used to allow the transport data to the IP address of the network device and computer system.

The data link layer is used to make a link between two data packets or more data packets to make a relation to complete the whole information and database.

Physical layer is a layer of connection of the hardware devices that are used to connect many types of network device and make a model for a data communication system for the many to many types of user connected to each other for sharing the data using the specific medium of communication system.

Introduction to the computer system related topic and the topic is following below here:

What is the purpose of data communication? Explain the data communication system.

Let's discuss the computer system related topic is mentioned above and the explained following below here:

What is the purpose of data communication? Explain the data communication system.

There are some points on the computer system and data communication system related to the topic of "What is the purpose of data communication? Explain the data communication system." following below here:

• Data communication is a term that provide the model for connecting physical layer to make a communication included basically the computer and network device

• Data communication contains the mode of data transmission for describing how the data can be transmitted

• Data communication needs also the security layer to protect the data when the data is transmitting to the user who connected to the model of network

• Data communication shares different types data and files to the device of user where the model of communication have different types of layers depends on the type of model

Let’s discuss these points listed above about the computer system and data communication related to the topic of “What is the purpose of data communication? Explain the data communication system.” explanation following below here:

Data communication is a term that provide the model for connecting physical layer to make a communication included basically the computer and network device

Data communication is a term that provides the model for connecting physical layers to make a communication including basically the computer and network device that means the physical layer is a combination setup of hardware resources such as computer system, mobile device or smartphone, cable connection and network devices. These are the common hardware devices for digital data communication to provide the connectivity and share the data in the different types of data such as text data directly in the form of message, image data files, audio files, video data files etc.

The data communication system is a type of connection that the user can easily get the data through the output hardware resources such as if the file is need to print and the user want to get the file in a hardcopy then the user commands to the printer resource from computer from the department to the other then the network device and cable sends the instruction to the printer resource and the file will print from the department or office.

Data communication contains the mode of data transmission for describing how the data can be transmitted

Data communication contains the mode of data transmission for describing how the data can be transmitted to the user’s devices such as input devices sends the instruction to the computer is an example of simplex mode of data transmission, walkie talkie communication is an example of half duplex data transmission and chatting through application software and voice calling through sim card is an example of full duplex mode of data transmission of data communication system. 

Data communication contains the mode of data transmission for sending the data to the user devices to get the information from long distance through the two different types of medium such as wired or cable system and wireless data connection between two or more network devices.

Data communication needs also the security layer to protect the data when the data is transmitting to the user who connected to the model of network

Data communication needs also the security layer to protect the data when the data is transmitting to the users it needs to secure from the cryptography art to encoded language of information sends to the targeted users through the network device in the form of decoded which is need to decoded from the application software. The application software installed both side user’s devices to encode and decode the data in the cryptography method to share the data in the secured form from the other users such as attackers, hackers and crackers.

The cryptographic data is in a particular format to protect the other that cannot be cracked easily through the downloading information by the cyber criminals which are the worst to download because they cannot get any information from the shared information of data packets from one to another device of data communication model.

Data communication shares different types of data and files to the device of user where the model of communication have different types of layers depends on the type of model

Data communication shares different types of data and files such as image, text files or text messages directly to the connected user, sending the audio files, the video files from one computer system to another computer system.

The file contains the information according to the type of file such as text file including the text data such as characters, numbers and special characters etc. these types of file processed by the relational database model.

The image file contains object based data which is processed by the object database model similarly the audio and video files also are processed by the object database model.

There is another solution for the database processing system is object relational database model is used to process all types of file which better than the two types of database model work differently.

The ORM is a part of the object relational database to process both types of database model and it is also used to convert the object database model to the relational database model or its reverse of process also.

ORM is a mapping language that provides the object relational mapping between both types of database to map its attributes and records to class for making a section and connection to each other during the mapping and making a relation between both types of database model.

The ORM stands for Object Relational Mapping for the object relational database software for processing all types of data such as text file, flat files, image file, audio files, video file working as a backend of those files to show the data on the file stored into it.

The OQL, ODL, DDL, DCL, DML are also performed by the ORM on the object relational database model.