NETWORKING DEVICES used in the modern offices

Details of Networking devices

1. Networking Devices By

2. Definition Internetworking devices are products used to connect networks. These are the hardware devices used to connect computers or other electronic devices together in order to share files or resources like printers or fax machines. As computer networks grow in size and complexity, so do the internetworking devices used to connect them

3. Networking devices Modem Hub Switch Repeater Router Gateway Bridge

4. modem Modem is a hardware device that converts data into a format suitable for a transmission medium so that it can be transmitted from one computer to another (historically along telephone wires). The goal is to produce a signal that can be transmitted easily and decoded reliably to reproduce the original digital data. A common type of modem is one that turns the digital data of a computer into modulated electrical signal for transmission over telephone lines and demodulated by another modem at the receiver side to recover the digital data. It enables to connect your computer to the available Internet connection over the telephone lines. It converts the digital signals of the computer into analog signals to enable their transmission via phone lines. At the destination, the recieving modem further converts the analog signals into digital signals so that the data can be understood at the recieving end. Modems are available in two categories: Internal Modem and External Modem. An Internal Modem comes with a saperate part that is installed and the PCI (Peripheral Component Interconnect) slots available on the motherboard, and an External Modem is connected externally to a computer. A modem modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information.

5. Hub A hub, also called a network hub, is a common connection point for devices in a network. Hubs are devices commonly used to connect segments of a LAN. The hub contains multiple ports. When a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets. Each connection is called a port. The connections are established using a fibre optic cable. When the hub recieves data at one of its ports, it distributes the data to the other ports in network. Typically, a hub sends all the data it recieves to all the connected ports.

6. Switch A switch is a device in a computer network that connects other devices together. Multiple data cables are plugged into a switch to enable communication between different networked devices. They are similar to hubs, but offer greater performance. Switches for Ethernet are the most common form of network switch. A switch is aware of the addressee assigned to each of its ports and sends the incoming data it receives only to the intended port.

7. Repeater A repeater is an electronic device that receives a signal and retransmits it. Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction. Repeaters are needed so that the signals can travel longer distances with the same strength or even at a higher power.

8. Router Router allows communication between your local home network—like your personal computers and other connected devices—and the internet and It is used to connect two different networks, such as two LANs, or a WAN. A router is the first line of security from intrusion into a network. It is a shared connection between a local area network and larger system, i.e., WAN.

9. Gateway A gateway is a piece of networking hardware used for telecommunications networks that allows data to flow from one discrete network to another. Gateways are distinct from routers or switches in that they communicate using more than one protocol to connect a bunch of networks and can operate at any of the seven layers of the open systems interconnection model (OSI). It allows Us to carry out various online activities, such as sending e-mail, browsing through web pages, buying things online, and more.

10. Gateway

11. bridge A bridge is a repeater, with add on the functionality of filtering content by reading the MAC addresses of source and destination. It is also used for interconnecting two LANs working on the same protocol. It has a single input and single output port, thus making it a 2 port device. It also prevents unnecessary traffic from entering the network and reduces congestion.

12. bridge

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