- NIC aka Network Interface Card or Network Interface Controller is a combination of hardware and software that connects a system to a network or Internet.
- It comprises of Physical and Data Link Layer considering OSI reference model stack.
- Physical address of the system is available in NIC.
- We can have Copper or Fiber Optic or wireless NIC introduced in the system. Once NIC is available, the system can be connected to Internet, no matter whether the system is your air-conditioner, washing machine or refrigerator.
Quick Question:
Where can I see all the layers in my system?
Smart Answer:
Physical and Data link layers are in NIC and the rest of them in operating system. If I remove my NIC, I can't get my system connected to Internet.
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