[wtallis]

I'm not sure how many similarities there are between current mainstream interfaces and Fibre Channel specifically, but there has been an obvious trend of convergence, and Fibre Channel was probably one of the earliest instances. Nowadays, almost all high-speed interfaces have abandoned parallel links in favor of serial signalling over differential pairs implementing a packet-switched network. There's enough similarity at the physical layer that you'll often see a chip designer go with a general-purpose PHY shared across SATA/SAS, USB, and PCIe ports because they all operate at similar speeds and often similar encodings (eg. 8b10b). Likewise for sharing between InfiniBand and Ethernet.

DRAM is still almost always a traditional parallel bus, and it's basically alone in that. HDMI was a late holdout where the signalling was serial on differential pairs but the clock speed was variable depending on the data rate; newer versions of the standard rely instead on the link operating at one of a handful of fixed standard data rates, as done by everything else.