What is the network interface card?
The network interface card (nothing) is a device that allows computers to join the network, usually in the local network area (LAN). Network computers communicate with each other using a specific protocol or agreed language to transfer data packets between different machines or "nodes". The network interface card acts as an interpreter, allowing the machine to send and receive data to the LAN. Information technology specialists (IT) often use these cards to set cable or wireless networks.
Function and purpose nothing
One of the most common languages or protocols used with LAN is Ethernet. There are also other, less used protocols such as a ring token. When creating a LAN, a network interface card is installed on each computer on a network and each must use the same architecture. For example, all cards must be Ethernet cards, tokens cards or alternative technology.N available slot inside the computer, usually on the motherboard. Nothing assigns the machines a unique address aboutThe rule of media approach (MAC), which is used to control traffic between computers in the network. Network cards also change data from the parallel format used by computers to the serial format necessary for data transmission; And then back for the information received.
Cable network
The rear plate of the card has a port that fits the data cable, such as the Ethernet cable, which leads from each of the central hubs or switch. It acts as a relay, transfers information between computers using its MAC addresses, and allows them to share sources such as printers and scanners. In the cable network, the cable physically connects each computer to each other or with a hub.
wireless networks
The network interface card does not have to be firmly connected with a physical cable. The border cards are installed as their cable counterparts, but rather than a port for the cable, the card has a small antenna. Nothing communicates with CentralIt is a wireless switch or a hub through radio waves. Wireless LANs are often advantageous, but may have some limitations depending on the material from which the building is made. For example, the wiring in the walls can block wireless signals between the network interface card and the hub or switch.
Select the right nothing
When purchasing components for LAN, it is important to ensure that the NIMS and the hub or switch have the same capabilities. The entire network should be either connected or wireless unless the components that have both functions are explicitly selected. In addition, newer versions of hardware often support more features and higher data speeds than older equipment. It is important to ensure that the central switch or hub is as good as the individual cards used in the network.
Wide nets and NICS
Puter -friendly can also connect LAN located in different areas of the city, region or country, through asynchronous modeaxis (ATM) and create a wide network (WAN). LANs are built with a network interface card on each computer, but the ATM uses an Internet connection to connect multiple ropes to an online switch to create each part of the network. This type of WAN is referred to as "Internet work" because the larger WAN consists of individual nodes, each of which is smaller ropes.