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My apple thunderbolt 4 cable has a computer more powerful than my firs computer in it (ARM Cortex‑M0 core running at up to 48 MHz vs a 286 at 25mhz)
by woleium 8mo ago
My apple thunderbolt 4 cable has a computer more powerful than my firs computer in it (ARM Cortex‑M0 core running at up to 48 MHz vs a 286 at 25mhz)
- shagie 8mo agoThat tickled a memory of a video... and I hunted it up. Adam Savage's Tested : Look Inside Apple's $130 USB-C Cable - https://www.youtube.com/watch?v=AD5aAd8Oy84 https://www.youtube.com/watch?v=AD5aAd8Oy84 (1 minute in "we've been saying that our phones have more computing power than the Apollo guidance computer but I'm positive now that this cable has more computing power than the Apollo guidance computer") That video is a look at cables (not just Apple's) with Lumafield's CT Scan.
- ssl-3 8mo agoLumifield quite recently showed on Adam Savage's Tested again, with some literal insights on a reasonably-diverse array of different 18650 cells: https://www.youtube.com/watch?v=AD5aAd8Oy84 https://www.youtube.com/watch?v=AD5aAd8Oy84 It's a good watch, and I learned some new stuff about some things that I only knew a little bit about before.
- DeathArrow 8mo agoProbably there is someone somewhere trying to make Linux boot on a thunderbolt cable.
- Yoric 8mo agoOr Doom.
- pseudohadamard 8mo agoWas going to say the same thing. With way more processing power you could output the video over USB-C/TB at one end and connect a keyboard at the other.
- nkrisc 8mo agoIt would be a pretty amusing demonstration to plug in the cable to a display, then pretend to plug the other end into an imaginary computer sitting nearby and have something boot up on the display.
- HPsquared 8mo agoIt'd be a cool physical demonstration at a cybersecurity roadshow. A concern: with all this computing onboard, does this mean a malicious USB-C cable could record screen and keystroke? Often the keyboard receiver is plugged into the monitor's USB hub and so screen and HID are both going along a single cable ... Which also does power delivery. Such cables are a definite "sales category" and could be a target for supply chain attacks. But if they now have chips onboard, doesn't that mean an attacker could even takeover a genuine cable? It seems like a real risk tbh.
- deleted 8mo ago[deleted]
- jamesy0ung 8mo agoI doubt you are going to fit a chip fast enough to snoop Thunderbolt traffic inside of a usb-c plug
- ChrisMarshallNY 8mo agoToday, but maybe not much longer. It is possible that the tech exists, but isn't yet at a point that it can be easily mass-produced, which means "spy cables" may actually be available, from Q-types.
- pm215 8mo agoThe fun thing about those thunderbolt cables is they have two Arm cores in them, one at each end...