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Some basic info about USB (lemmy.world)

submitted 2 months ago by [email protected] to c/[email protected]

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[–] [email protected] 8 points 2 months ago (2 children)

The P and D symbol is the DisplayPort logo. I'm not sure when it was first used, but the DisplayPort standard itself is quite a bit older than USB Power Delivery.

It's still confusing though regardless of which can lay the best claim to the letters P and D. I would have suggested Power Delivery could use some sort of lightning bolt symbol, but then I realised that would probably conflict with Thunderbolt, which also uses USB-C.

It's almost as if having all these different features would be easier to differentiate if they had different physical shapes.

[–] [email protected] 5 points 2 months ago

Yeah, Display Port is old, but I've never seen that P and D symbol before, or at least never noticed it. And, even if it existed before Display Port over USB, you'd think that that potential confusion was a good opportunity to come up with a new logo for something that would be put next to a USB port.

It’s almost as if having all these different features would be easier to differentiate if they had different physical shapes.

I think the goal was always that you'd only ever need one type of port and one type of cable and that that port and cable could do anything. Unfortunately, because there are so many revisions and so many features are optional, you've now got a situation where the port is the right shape, the cable fits into the port, but you can't get the thing to work without reading the fine print, or without decoding obscure logos.

[–] [email protected] 3 points 2 months ago* (last edited 2 months ago)

How about a monitor/TV for display.

I like that battery for power, though a vertical battery would be clearer.