Today we are going to see the 3 Main components in networking:
1 . Switches - Switch is a hardware device which connects more number of devices in a computer network by using packet switching to receive and forward the data to the destination device. It is also,called as network switch which transfers the data in the data link layer(layer 2) of the OSI model(Open Systems Interconnection Model). The first Ethernet switch was introduced by Kalpana in 1990.
2. Routers - A router is a networking device which transfers data in the form of data packets from one network to another. A packet is usually Transferred from router to another router between the networks that constitute an Internetwork until it reaches its destination. Eg:- Internet.
3. 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.