Network Devices (Hub, Repeater, Bridge, Switch, Router) ...
NIC Card
Repeater
Hub
Bridge
Switch
Gateway
Router
Modem
.
NETWORK INTERFACE CARD
It stands for Network Interface Controller. NIC used to connect the ethernet cable (RJ-45), (SC, ST Connector) with the PC. It is a Card which has Mac Address written on it. Components of NIC:- Metal Expansion Card Boot ROM Chip 32 bit PCI Controller Activity LED RJ-45 LAN Port
REPEATERS
The repeater is used to regenerate or replicate a signal. It removes the unwanted noise in an incoming signal, it works on Layer 1 of OSI Model It is used in some scaled area and it refines the signals and manage the proper speed of the network
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HUB
It is a Networking Device that simply receives data from one port and transfers to all the other ports. HUBs are commonly used to connect segments of LAN. Hub Works on Physical Layer of the OSI Model It is used where you have to create multiple ethernets with the help of a networking device. It comes with a different port segment like 6,12 & 24
BRIDGE
Bridge Devices inspect incoming network traffic and determine whether to forward or discard it according to the intended destination it operates on data link layer A bridge is a type of computer network device that provides interconnection with other bridge networks that use the same protocol.
SWITCH
A Switch can receive input or signal from any of one port and transmit it on all the ports. Ethernet LAN is used to connect to a switch that corrects the system. It works on the Data link layer of the OSI Model It is a small device that transfers data packets between multiple network devices such as computers, routers, servers, or other switches
GATEWAY
Gateway Connects two networks together with the help of gateway devices like firewire & router. It is a node between the public network and private network which makes some security with the help of identification A gateway is a networking device that connects two networks using different protocols together. it also acts as a “gate” between two networks
ROUTER
A router is a networking device that is used to provide interaction between two different networks. The router is also used to provide the routes to the data and devices that are connected to the network. The router is used to establish internetwork communication
A router inspects a given data packet's destination Internet Protocol address (IP address) and provides a connection to the nodes with the main network. It gives you wired and wireless both connectivities
MODEM
”Modulator-Demodulator” A modem or broadband modem is a hardware device that connects a computer or router to a broadband network. It converts or "modulates" an analog signal from a telephone or cable wire to digital data (1s and 0s) that a computer can recognize. The main difference between the two devices is that a modem lets you connect to the internet, while a router distributes that connection to different devices. A modem is your gateway to the web, while a router is a central hub for your devices.
