In the past couple of decades implementing the software for subsystems was based on a single, complex, unstructured program with many interacting components. Therefore software was very difficult to test and modify. To overcome such problems, the International Organization of Standardization(ISO) has started various network schemes in other words Computer Network Models. In layered principles, the networking concept is divided into several layers, and each layer is given a particular task. Layered Architecture The main aim of layered architecture is to divide the model into small parts. Every lower layer adds its services to the higher layer to provide a…
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Topology defines the structure of the network of how all the components are interconnected to each other. There are two types of topology: physical and logical topology. Bus Topology The bus topology is designed in such a way that all the stations are connected through a single cable known as a backbone cable. Each node is either connected to the backbone cable by drop cable or directly connected to the backbone cable. When a node wants to send a message over the network, it puts a message over the network. All the stations available in the network will receive the…
Internetwork An internetwork is defined as two or more computer network LANs or WAN or computer network segments are connected using devices, and they are configured by a local addressing scheme. This process is known as internetworking. An interconnection between public, private, commercial, industrial, or government computer networks can also be defined as internetworking. An internetworking uses the internet protocol. The reference model used for internetworking is Open System Interconnection(OSI). Types Of Internetwork: 1. Extranet: An extranet is a communication network based on internet protocol such as Transmission Control protocol and internet protocol. It is used for information sharing. Access…
A computer network is a group of computers linked to each other. It enables the computer to communicate with another computer. It share its resources, data, and applications. The main computer network types are divided into four types based on their functions. The networks are LAN, MAN, PAN, and WAN. LAN stands for Local Area Network, MAN is Metropolitan Area Network, Personal Area Network is abbreviated into PAN whereas WAN is a Wide Area Network. PAN is further divided into Wired Personal Area Network and Wireless Personal Area Network. There are many applications based on the computer network and each…
Computer network components are needed to install the software. Computer network components together make it possible to transfer data from one device to another. It makes smooth communication between different devices. In this lesson, we will discuss the main components of a computer network. Network Interface Card (NIC) NIC is a hardware component used to connect a computer with another computer onto a network. It can support a transfer rate of 10,100 to 1000 Mb/s. The MAC address or physical address is encoded on the network card chip which is assigned by the IEEE to identify a network card uniquely. The…
Computer Network Architecture Computer Network Architecture is defined as the physical and logical design of the software, hardware, protocols, and media of the transmission of data. In other way we can say the computers are organized and how tasks are allocated to the computer. A computer network model represents the organization of multiple computers in a network. It describes how individual computers are interconnected in a network. The computer network architectures are as follows − Centralized Computing Architecture In centralized computing architecture, one powerful computer is used as a server for one or more low-powered computers. In the centralized model,…
Features Of Computer network Computer Network is a connection of two or more different devices that are connected through a medium in order to exchange information. With the help of a Computer Network, you can easily send or receive data. The important features of computer network are: Data Sharing Reliability Scalability Security Performance Backup Software and Hardware Compatibility Data Sharing Is a most important feature of a Computer Network is that with their help you can easily share the data between different systems that are connected with each other through transmission media. Thus, resources can be easily shared between…
What is a basic introduction to Computer networks? Computer Network is a group of computers connected with each other through wires, optical fibers, or optical links so that various devices can interact with each other through a network. The aim of the computer network is the sharing of resources among various devices connected to each other. In the case of computer network technology, there are several types of networks that vary from simple to complex level. Computer networks are required for network communication and network resource sharing like printers, scanners, storage devices. To connect computer networks, we need computers and…
What is a basic introduction to Computer Systems? Basic Introduction on Computer System is a set of integrated devices that takes input, processes it, and gives output. Also, it stores data and information. The computer system allows users to input, manipulate and store data. Computer systems include a CPU, monitor, keyboard, mouse, and other optional components. What is Computer System? A computer system is an electronic device that takes data as an input and processes it under the control of a set of instructions (called program) and then produces a result (output), and all the set is called a computer…