Details about Computer networks and its importance

computer network
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Computer networks

Contents:

  • Connecting computers
  • Network concept and its importance
  • Network services
  • Transmission and receipt of information
  • Location concept
  • Local, regional and global computer networks
  • Speed concepts in information environments, a capacity of units and information channels

Connecting computers

Computer networks of colleges and vocational colleges and academic lyceums of higher education institutions and their problems. Connect computers to one another. There is a need for computers to interconnect with computers to share information and share common issues together. There are two different ways to connect computers:

1.Cable tie.

The computers are connected to each other using a coaxial, twisted pair cable (UTP) or fibrous cables, using a dedicated network board.

2.Wireless connection.

At the same time, computers are interconnected by means of wireless communication, ie radio waves, infrared light, WiFi and Bluetooth technology.

The concept of network and its importance

A network is a set of interconnected communication channels that provide information exchange between computers, terminals, and other devices. These networks, which provide inter-personal information sharing, are called computer networks. Long-distance access to information has been provided through the network. Network data transfer, organizing separate PCs, and solving one problem with multiple computers.

computer network

  • Network services

Computer networks are specialized in transmitting and receiving information as electrical signals. The networks are built to achieve a goal, ie it is specialized for solving some issues through connected computers. Network services can be provided as an example:

  • File server service

In this case, all computers in the network can use the data of the host (server) or place their data in the host computer;

  • Print server service

Thus, all computers in the network can print their data on a paper-based computer management system;

  • Proxy server service

Thus, all computers connected to the network can use the Internet or other services simultaneously with the introduction of a computerized service;

  • Computer and user management service

This determines and controls the network behavior and functionality of all networked computers and registered users.

Transferring and receiving information

The network always combines multiple computers, each of which has the ability to transmit and receive its own information. Data transmission and receipt are done in the order of computers. Therefore, information exchange in any industry is governed. This, in turn, eliminates or eliminates information conflicts between computers.

After establishing computer networks, the addresses of all computers in it will be determined. Because the transmission of data from one computer to another through the network is done by computer addresses. The information transmitted is transmitted to the network, such as the process of sending a message to us in the normal way. Each computer compares the recipient’s address in the information from the information to his / her address, if the addresses match, then receives the information and sends confirmation that the recipient has received the information. In the same way, computers will exchange information.

Position concept

The concept of address in computer networks can be summarized as follows:

The location determines the parts of the computer’s memory, ports of computer printing-disconnecting devices, computing network computers, and other sources of data or the location specified for transmission.

Data sequence, which identifies the recipient or senders of data transmitted in address reporting networks.

Local, regional and global computer networks. Computer networks can be divided into several types depending on their geographical location, scale, and size

  • Local network

A network that connects computers in several adjacent buildings within an enterprise or facility.

  • Regional networks

Regional networks are networks that connect computers and local networks to countries, cities, and regions through specialized communication or telecommunications channels.

  • Global networks

It is a large network connecting itself to the world’s computers, subscribers, local and regional networks through telecommunication (cable, wireless, satellite). Speed concepts in information environments, a capacity of units and information channels. The amount of information transmitted over a certain period of time by communication environments determines the rate of transmission.

As for the speed concept and the units of measurement for any moving object and material, the information also has the transmission speed and the units of measurement:

Bit/second – the number of bits transmitted per second through the communication medium;

Kbps – the number of thousands of coalesced bits transmitted per second through the communication medium;

Mbit / sec – a million bits per second transmitted over the communication medium;

Gbt / sec is the number of billions of collected bits transmitted per second through the communication medium.

The computer networks of higher education institutions, vocational colleges, and academic lyceums and schools, and the issues to be solved on the basis of:

  • organization and searching for information;
  • to provide information and knowledge sharing with modern information technologies;
  • searching for additional information from the network to deepen their knowledge;
  • Perform independent work of students;
  • use of electronic library resources;
  • distance education;
  • preparation and transmission of reports;
  • organization of electronic document exchange;
  • Students’ parents follow their children’s appetite and behavior.
  • In addition, today the educational network of educational institutions has been created in our country. Ziyonet information and education network incorporates information resources for all educational institutions. Today, all teachers, students, and students have access to this network. Ziyonet information and education network provides the ability to locate, categorize, group, and search for information.

 

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