6 - Network Interfaces #


Pictured here are three Network Interface Cards (NICs). The three on the left are for Wi-Fi (though some of this form factor may include Bluetooth as well) while the one on the right has an Ethernet port for wired access. Most computer’s will not have a separate card for the wired interface, though, as most motherboard’s have a wired network interface built in.

NICs also include the wireless chipset used for connecting to a cell tower and really any radio communication device in general.

Older NICs include those used for Dial-Up connections and some obscure wireless methods that predate Wi-Fi.

Ethernet #

[TODO] rj45, Ethernet over infiniband, speed bases

Wi-Fi #


Channels 12, 13, 14. 2.4 v 5, Wi-Fi 6, weird authentication, etc

High Bandwidth #

[TODO], infiniband, DMA, 10GbE+, Multigig

At the end of the day, nothing is faster than a truck filled with drives. [TODO xkcd link]

The Future #


wifi6, 10gbe rj45 and beyond, cellular, SDR

The Past #


coax network, infrared, sneakernet

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