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Thursday 8 February 2018

Network Components

Basic computer network components


Networking

Network Interface Card - . NIC prepares (draft) and sends. Receives data, data, and controls data flows between computers and networks. On the dispatching side, NIC passes the frame of data on the physical layer, which transmits the data on the physical link. On behalf of the receiver, NIC processes the bits obtained from the physical layer and processes the message based on its content.



Early network interface controllers were usually applied to extended cards that were plugged into a computer bus. Lower cost of Ethernet standard and ubiquity means that most newer computers have a built-in network interface in the motherboard.

Hub -Hub is a type of device that divides the networks. Connect to many computers. This is like a distribution center. When a computer requests information from a network or a specific computer, it sends a request to the hub via cable. The hub will receive the request and will transmit it to the entire network. Every computer in the network should then find out whether the broadcast data is for them or not.


"A network hub is a node that transmits data from every computer or ethernet-based device. A hub switch is less refined, after which different devices can separate data transmission."

Switch - Switch is a type of  telecommunication tool that is grouped as one of the computer network components. The switch is like a hub but is built with advanced features. It uses the physical device address in each incoming message so that it can deliver messages to the right destination or port.

Like a hub, the switch does not broadcast the received message across the network, but before checking for which system or port the message should be sent. In other words, the switch directly connects the source and destination, which increases the speed of the network. Common features in both switches and hubs are: multiple RJ-45 ports, power supply and connection lights.


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