10GHz at under 1V by 2005 - The future of Intel’s manufacturing processes [2000]

Post by jimbert » Wed, Feb 08, 2017, 5:35 AM UTC

kushan2020 wrote: post #28

gaze wrote: post #15

Earlier quoted context omitted.

I'd definitely say electrons propagate through wires to carry signals. The electrons charge the gates on the fets which opens or closes the channel, which allows electrons to flow through another wire. I wouldn't say it's terribly explanatory tho

Well that is not correct @gaze. Although your light turns on very quickly when you flip the switch, and you find it impossible to flip off the light and get in bed before the room goes dark, the actual drift velocity of electrons through copper wires is very slow. It is the change or "signal" which propagates along wires at essentially the speed of light. refer https://en.m.wikipedia.org/wiki/Drift_velocity

Post by [deleted] » Wed, Feb 08, 2017, 5:36 AM UTC

jimbert wrote: post #32

kushan2020 wrote: post #28

Earlier quoted context omitted.

Well that is not correct @gaze. Although your light turns on very quickly when you flip the switch, and you find it impossible to flip off the light and get in bed before the room goes dark, the actual drift velocity of electrons through copper wires is very slow. It is the change or "signal" which propagates along wires at essentially the speed of light. refer https://en.m.wikipedia.org/wiki/Drift_velocity

The fact that drift velocity is nonzero means that electrons are indeed moving as @gaze says.

Post by knowaveragejoe » Wed, Feb 08, 2017, 5:41 AM UTC

kashkhan wrote: post #25

monocasa wrote: post #21

Earlier quoted context omitted.

> Otherwise more research could have gone towards solving heat problem. (ii) Each cycle of CPU was more efficient with ability to execute multiple instructions in a single cycle and with more efficient instruction sets. Dude, Intel spends something like $80B/yr on R&D. This is closer to hitting fundamental laws of physics barriers. They killed off their P4 line and developed their mobile line for a reason.

the $80B a year in R&D is off by an order of magnitude. https://www.fool.com/investing/2017/02/05/intel-corporation-...

Post by gaze » Wed, Feb 08, 2017, 5:43 AM UTC

jimbert wrote: post #32

kushan2020 wrote: post #28

Earlier quoted context omitted.

Well that is not correct @gaze. Although your light turns on very quickly when you flip the switch, and you find it impossible to flip off the light and get in bed before the room goes dark, the actual drift velocity of electrons through copper wires is very slow. It is the change or "signal" which propagates along wires at essentially the speed of light. refer https://en.m.wikipedia.org/wiki/Drift_velocity

The fact that drift velocity is nonzero means that electrons are indeed moving as @gaze says.

Post by tuxracer » Wed, Feb 08, 2017, 5:46 AM UTC

DaiPlusPlus wrote: post #35

Strom wrote: post #24

It's interesting that while we aren't at 10 GHz quite yet, the functionality that was mentioned in the article [1][2] is here and works even on budget smartphones. -- [1] Imagine being able to speak normally with your computer as you would a secretary sitting next to you and have your computer accurately and quickly take notes from your speech. [2] Imagine logging onto your computer not via a user name and a password…

Example 1, if we're referring to the likes of Siri and Alexa isn't thanks to improvements in personal computer technology - said platforms send your speech recording off to a massive datacenter for processing, no need for 10Ghz processors there. Example 2 requires the use of depth-sensing and heat-sensitive cameras to avoid trivial "show a photo of an authorized user" attacks - that's not really CPU-dependent either.