Types of Network Devices in Computer Network

In this video, we will be covering the different types of network devices which are present in computer network.

Hardware devices used to connect computers, printers, fax machines, and many other electronic devices to a network are referred to as network devices. Network devices are classified into intra-network and inter-network. Data transfer is fast when network devices are used. Data is transferred securely over the same or different networks. Data is transferred in a correct manner over the same or different networks. 

Mostly used network devices in networking are:
1) Repeater: The repeater is used at the physical layer. Its task is to regenerate the signal over the same network before the signal becomes too weak. Repeaters never amplify the signal. When the signal is weak, repeaters bit by bit copy the signal and regenerate it at the original strength. 
2) Hub: Hub is a multiport repeater. Multiple wires coming from diverse branches are connected using a hub, for example, in star topology hub is used as a connector that connects different machines. 
3) Bridge: Bridge device is used at the data link layer. The bridge is exactly like a repeater, with extra functionality of content filtering by evaluating MAC addresses of source and destination. Interconnects two LANs working on the same protocol.
4) Switch: Switch plays a more intelligent role than hubs. The switch is a multiport bridge with a buffer and a design that increases its performance and efficiency. Switch checks the error before forwarding data, which makes it effective as it never forwards the packets which have errors and only forwards packets that are good and send them only to the correct port. 
5) Router: The router device is used at Network Layer. A router device is similar to switch that based on IP addresses routes their data packets. The router splits broadcast domains of hosts connected through it. 
6) Gateway: Gateway, is a track or gate to connect two different networks together. Data is taken from one system, interpret, and send to another system. Gateways are known as protocol converters and can operate at any network layer.
7) Access Point: Access point (AP) can technically involve either a wired or wireless connection. It commonly means a wireless device. An AP works at the second layer of the OSI model i.e. the Data Link layer. 

Network devices: https://www.geeksforgeeks.org/network-devices-hub-repeater-bridge-switch-router-gateways/