Client and servers in computer networks

Client and servers in computer networks

Last updated on November 12th, 2018Client/Server network: A network within which one centralized, powerful computer (called the server) may be a hub to that several less powerful personal computers or workstations (called clients) are connected. The clients run programs and access information that is saved on the server. The clients and server are connected to each other using a network topology. A server’s core purpose is to try to what its name implies – serve its clients! Clients and servers communicate over a network on separate hardware; however, each client and server could reside within…

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OSI models in computer networks

OSI models in computer networks

Last updated on November 13th, 2018What is the OSI model? OSI model means Open System Interconnection is a reference model that shows how applications communicate over a network. A reference model is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computer system while not referring to its underlying internal structure and technology. It is a seven-layer design with every layer having a specific practicality to perform. Of these seven layers work collaboratively to transmit the info from one person to a different across the world. Application Layer: This layer interacts…

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Difference between public network, private network & value added network

Difference between public network, private network & value added network

Last updated on November 12th, 2018What is a Private network? A private network is any affiliation among network whereby restrictions are established to market a secure atmosphere. This sort of network may be organized in such the simplest way that devices outside the network cannot access it. Solely a particular set of devices will access this sort of network betting on the settings encoded within the network routers and access points. On the opposite hand, a public network is outlined as a network that anyone will freely hook up with very little or no restriction. Private networks are maximally used for home networks and that to basically share printers. What is the…

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Why we need computer networks?

Why we need computer networks?

Last updated on November 12th, 2018What is a computer network? A network could be a cluster of computer systems and different computing hardware devices that are coupled along through communication channels to facilitate communication and resource-sharing among a good vary of users. Networks are usually classified based on their characteristics. In computer networks, the data is exchanged with each other using connections between nodes.  These connections or data links are established over cable media like optical fiber cables, wires, or wireless media. Why do we need computer networks? If a business has more…

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Distributed Data Processing (DDP) in computer networks

Distributed Data Processing (DDP) in computer networks

Last updated on November 12th, 2018What is Distributed Data Processing (DDP)? Distributed Data Processing (DDP) is a computer-networking method in which several numbers of computers share data processing capabilities across various location. Computers that embrace the Distributed Data Processing network are placed at different locations but connected by means of wireless connections. DDP has a great capability to handle the growing amount of work but simultaneously require more network resources. Distributed Processing is the most…

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Multiplexing in computer networks

Multiplexing in computer networks

Last updated on November 12th, 2018Multiplexing in Computer Networks  Multiplexing is used to combine multiple signals like analog or digital for transmission of information over a single line or media. At the receiving end, the receiver recovers the separate signals, a process called demultiplexing (or demuxing). Multiplexing is mainly done for two reasons: To make it possible for any network device to talk to any other network device without having to dedicate a connection for…

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How to understand communication channels in computer networks?

How to understand communication channels in computer networks?

Last updated on November 12th, 2018What is Communication Channel? A medium through which information is transmitted from one place to another is called as Communication channel. Some communication channels in computer networks are fiber optical cable, coaxial cable, microwave, satellite etc. In a communication channel, the data is transmitted in the form of an analog signal, and the transfer of data is measured in the form of bandwidth. The higher the bandwidth the more the…

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How To Communicate Over TCP/IP Protocol?

How To Communicate Over TCP/IP Protocol?

Last updated on November 13th, 2018Network Protocols A protocol is a set of rules that govern data communication. A protocol defines what is communicated, how it is communicated and when it is communicated. The key elements of a protocol are syntax, semantics, and timing.   Syntax Syntax refers to the structure or format of the data, meaning the order in which they are presented. For example, a simple protocol might expect the first eight bits…

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How to understand network topology?

How to understand network topology?

Last updated on November 13th, 2018Network Topology The graphical arrangement of computer systems, or nodes to form a computer network, is called the network topology. A network topology can be one of two types: physical topology and logical topology. Physical topology refers to the physical arrangement of computer nodes based on hardware configuration while logical topology defines how data is flowing through the network. Both topologies exist in a Local Area Network (LAN). All the…

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