What are the advantages and disadvantages of NIC
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Answer Posted / sumedha
A network interface card, network adapter, network
interface controller (NIC), or LAN adapter is a computer
hardware component designed to allow computers to
communicate over a computer network. It is both an OSI
layer 1 (physical layer) and layer 2 (data link layer)
device, as it provides physical access to a networking
medium and provides a low-level addressing system through
the use of MAC addresses. It allows users to connect to
each other either by using cables or wirelessly.
Although other network technologies exist, Ethernet has
achieved near-ubiquity since the mid-1990s. Every Ethernet
network card has a unique 48-bit serial number called a MAC
address, which is stored in ROM carried on the card. Every
computer on an Ethernet network must have a card with a
unique MAC address. Normally it is safe to assume that no
two network cards will share the same address, because card
vendors purchase blocks of addresses from the Institute of
Electrical and Electronics Engineers (IEEE) and assign a
unique address to each card at the time of manufacture.
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