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The original Ethernet used a communications protocol sometimes referred to as "send while listening." This means that if you have something to say you just say (send) it. You also listen for garbled messages that are the result of collisions and then back off for a random time before sending again. Regardless of the hardware and technical protocol improvements, 100 GB ethernet works exactly like the original ethernet over coax. The fact that coax was used was because the tools to add additional devices were common, simple, and worked well.
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obermd wrote: This means that if you have something to say you just say (send) it. You also listen for garbled messages that are the result of collisions and then back off for a random time before sending again. Regardless of the hardware and technical protocol improvements, 100 GB ethernet works exactly like the original ethernet over coax.
Is that really so?
For one thing: "if you have something to say you just say (send) it" is not correct. You always wait until there is no signal (carrier) on the cable. That is what "CS" in CSMA/CD refers to: Carrier Sense. If you sense a carrier, you do not send anything.
To quote Wikipedia on "Carrier-sense multiple access with collision detection":
Modern Ethernet networks, built with switches and full-duplex connections, no longer need to use CSMA/CD, because each Ethernet segment, or collision domain, is now isolated.
Maybe I misunderstand Wikipedia, but I take this to mean that you do not "listen for garbled messages that are the result of collisions and then back off for a random time before sending again".
In any case: This medium access control is one single aspect of a physical layer protocol. (At least in the original Ethernet it was physical layer - nowadays some people insist that it belongs in the link layer, even though we are talking about the physical medium/signals.) You may say that this is The Protocol. I dare to think that it is one tiny little speck of "The Ehternet Protocol".
And I still believe that even this physical protocol aspect has changed since 1973.
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Amazon next year will allow auto dealers to sell cars through its site, starting with Hyundai. People that bought this car also bought this car?
Or
Two day delivery with Super Saver Shipping, and it comes in a really big box
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The returning politic is for sure going to be funny
M.D.V. 
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Mine came in a bag that said it was saving material and weight in shipping.
I’ve given up trying to be calm. However, I am open to feeling slightly less agitated.
I’m begging you for the benefit of everyone, don’t be STUPID.
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60,000 people lost full phone service, half of AT&T's network was down, and 500 airline flights were delayed But was it the *right* line of code?
Yeah, Substack. Sorry for all the popups they throw at you, but I was able to read the full article without signing up/paying.
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rm -rf?
M.D.V.
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The Deep Space Optical Communications tool on the Psyche probe achieved successful data transmission to and from Earth from an unprecedented distance. What were the roaming charges like?
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Pfff still nothing compared with SG1 or Star Treck communications
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We’ve been working on a refresh for the Visual Studio UI to improve productivity, create a more inclusive environment, and keep up with evolving global accessibility requirements. "They're the same picture"
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Kent Sharkey wrote: "They're the same picture"
But with other borders and rounded corners
M.D.V.
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Microsoft ensures Windows 11 is compliant with the Digital Markets Act in the European Economic Area. What are you going to use to download Chrome now?
And look at that - another shortcoming of Brexit 
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Kent Sharkey wrote: And look at that - another shortcoming of Brexit 
M.D.V.
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Only in the EU, so the UK Brexitted themselves out of this ruling.
TTFN - Kent
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I got that, I thought there was going to be a hidden meaning or joke behind it. All good then 
M.D.V. 
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Reports on Saturday claim that the board has gone back to Altman and asked him to return to the CEO role, under pressure from investors. Press Ctrl-Altman-Del to restart company
Yes, I basically stole that from The Register. But it was brilliant (on their part).
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Now they are pressing CTRL+Z
M.D.V.
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A programmer has created an AI version of David Attenborough to narrate his life. Not what they meant when they said document your code
Although I guess that's a documentary of your code
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Major upgrade of functional-first programming language brings lambda shorthands, faster compilation, new diagnostics, and ‘quality of life’ improvements. It's not F#'ing dead, yet
Unlike one other language that shall not be named
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Nice!
I dunno any of the 20 people using F#, but they must be ecstatic! 
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Microsoft isn’t changing the Windows 10 end-of-support date, but it’s looking at releasing more AI features. Maybe this will make..uh, nevermind
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Kent Sharkey wrote: Maybe this will make..uh, nevermind
I have a Dejà Vóu 
M.D.V.
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I can't wait for the Windows XP version, very exciting times!
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Microsoft announced this week that it's not changing its 2025 support deadline for Windows 10. If you missed the news, maybe you weren't looking in the right place. Maybe this will make them upgrade, attempt 2025
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Kent Sharkey wrote: Maybe this will make them upgrade
Yeah... They might even be successfull, for all those that were procrastinating who might be able to change to linux
M.D.V.
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