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A network switch (also called switching hub, bridging hub, officially MAC bridge) is a computer networking device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device.

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In enterprises, the gateway is the computer that routes the traffic from a workstation to the outside network that is serving the Web pages. In homes, the gateway is the ISP that connects the user to the internet. In enterprises, the gateway node often acts as a proxy server and a firewall.

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In computer networking, a wireless access point, or more generally just access point, is a networking hardware device that allows a Wi-Fi device to connect to a wired network. The AP usually connects to a router as a standalone device, but it can also be an integral component of the router itself

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When referring to a network, a hub is the most basic networking device that connects multiple computers or other network devices together. Unlike a network switch or router, a network hub has no routing tables or intelligence on where to send information and broadcasts all network data across each connection.

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A network device used to regenerate or replicate a signal. Repeaters are used in transmission systems to regenerate analog or digital signals distorted by transmission loss. Analog repeaters frequently can only amplify the signal while digital repeaters can reconstruct a signal to near its original quality.

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a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.

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A Uniform Resource Locator, colloquially termed a web address, is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifier, although many people use the two terms interchangeably

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The name is sometimes written as WiFi, Wifi, or wifi, but these are not approved by the Wi-Fi Alliance. IEEE is a separate, but related organization and their website has stated "WiFi is a short name for Wireless Fidelity"

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A firewall is a system designed to prevent unauthorized access to or from a private network. You can implement a firewall in either hardware or software form, or a combination of both. Firewalls prevent unauthorized internet users from accessing private networks connected to the internet, especially intranets.

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When referring to computers, a bridge is a device that connects two LANs (local area networks), or two segments of the same LAN. Unlike a router, bridges are protocol independent. They forward packets without analyzing and re-routing messages

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Telnet is a protocol used on the Internet or local area network to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection.

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A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. ... A packet is typically forwarded from one router to another router through the networks that constitute an inter network until it reaches its destination node.

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The Gopher protocol is a TCP/IP application layer protocol designed for distributing, searching, and retrieving documents over the Internet

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An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing.

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the delay before a transfer of data begins following an instruction for its transfer.

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In computing, a file server (or file server) is a computer attached to a network that provides a location for shared disk access, i.e. shared storage of computer files (such as text, image, sound, video) that can be accessed by the workstations that are able to reach the computer that shares the access

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An application server is a software framework that provides both facilities to create web applications and a server environment to run them. Application Server Frameworks contain a comprehensive service layer model.

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A star topology is a topology for a Local Area Network (LAN) in which all nodes are individually connected to a central connection point, like a hub or a switch. A star takes more cable than e.g. a bus, but the benefit is that if a cable fails, only one node will be brought down.

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A tree topology is a special type of structure in which many connected elements are arranged like the branches of a tree. For example, tree typologies are frequently used to organize the computers in a corporate network, or the information in a database.

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Mesh topology is a type of networking where all nodes cooperate to distribute data among each other. This topology was originally developed 30+ years ago for military applications, but today, they are typically used for things like home automation, smart H VAC control, and smart buildings.

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A bus topology is a topology for a Local Area Network (LAN) in which all the nodes are connected to a single cable. The cable to which the nodes connect is called a "backbone". If the backbone is broken, the entire segment fails.

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A ring topology is a network configuration in which device connections create a circular data path. Each networked device is connected to two others, like points on a circle. Together, devices in a ring topology are referred to as a ring network.

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The physical topology is the way you physically lay out the network, like a map, and the logical topology is the way the information flows on the network. Usually, the physical and logical topology is the same, but sometimes they can differ, such as in a physical star/logical ring topology.

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In computer network and computer science, digital bandwidth or just bandwidth means the amount of data that can be sent from one point to another in a certain period of time. It is measured as a bit rate expressed in bits per second (bits/s) or multiples of it (kbit/s Mbit/s etc.)

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The File Transfer Protocol is a standard network protocol used for the transfer of computer files between a client and server on a computer network. FTP is built on a client-server model architecture using separate control and data connections between the client and the server.

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The File Transfer Protocol (FTP) is a standard network protocol used for the transfer of computer files between a client and server on a computer network.

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A communication channel or simply channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking.

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An organizational structure is a system that outlines how certain activities are directed in order to achieve the goals of an organization. These activities can include rules, roles and responsibilities. The organizational structure also determines how information flows from level to level within the company.

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The geographic structure is one of several organizational designs. This particular structure brings workers together in geographical divisions. Other divisional structures group according to product, service or customer.

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Stands for "Peer to Peer." In a P2P network, the "peers" are computer systems which are connected to each other via the Internet. Files can be shared directly between systems on the network without the need of a central server. In other words, each computer on a P2P network becomes a file server as well as a client.

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client/server network. A computer network in which one centralized, powerful computer (called the server ) is a hub to which many less powerful personal computers or workstations (called clients ) are connected. The clients run programs and access data that are stored on the server. Compare peer-to-peer network .

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TCP is one of the main protocols in TCP/IP networks. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and also guarantees that packets will be delivered in the same order in which they were sent.

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It is generally applied to connect geographically dispersed LANs. Therefore the goal of MAN is to develop a communication link between two independent LAN nodes. A MAN (Metropolitan Area Network) is usually established using optical fiber. The network is established using routers and switches.

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A neighborhood area network (NAN) is an offshoot of Wi-Fi hotspots and wireless local area networks (WLAN), which enable users to connect to the Internet quickly and at very little expense. A NAN is generally installed by an individual to serve a family or a number of neighbors.

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A wide area network (WAN) is a telecommunications network, usually used for connecting computers, that spans a wide geographical area. WANs can by used to connect cities, states, or even countries.

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A personPersonal Area Network (PAN)  al area network (PAN) is a computer network for interconnecting devices centered on an individual person's workspace. A PAN provides data transmission amongst devices such as computers, smartphones, tablets andpersonal digital assistants.

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   Local Area Network          (LAN)       

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   Local Area Network          (LAN)       

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A local-area network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room, building or group of buildings, however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves.