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4. Packet Analysis: You’ve Been Framed > Network cards handle encoding
Network cards handle encoding
Encoding is handled by the Network Interface Card, or NIC, inside the computer. It handles and decodes digital signals, and is in charge of all the messaging ins and outs on the computer.
So how does the NIC encode the data?
The NIC starts by taking the message that needs to be sent across the network. It then turns the message into binary numbers, a series of 0’s and 1’s. After that, it encodes these numbers, and sends corresponding voltage signals through an attached network cable.
So if we know what the signal is, how do we find the original message?
