IBM Researchers Create Device Which Uses Light for Communication Between Computer Chips

[SuperDogbrown]

interesting video and very informative

[sangolt88]

I'm probably dead by the time this shit hits the mainstream.

[ikoronduka]

Would the whole idea of a resonant circuit be obsolete. also wont computers like that be easily tampered with. One short Em pulse you fry the whole thing. This wont be useful in space travel because of time dilation. The light signals would be red shifted. Also in space a space station with soo much gravitational force on it wont the signals be scrambled. The idea is sound but too much problems with it. Correct me if i am wrong

[eriksanabria]

hello, where can I download the paper you mention at the beginning of the video? thanks

[Paganel75]

Might be interesting for light computing ;-)

[dgessence]

Brought to you by Ethiopian scientist Dr. Solomon Assefa

[pmspjn]

Excellent,..Another good innovation from Big blue IBM

[fuunguus]

I remember reading somewhere that computers that run purely on light could be 1000 times faster than our computers today. I hope they get the technical stuff figured out soon, the computer industry is soon hitting a wall, the 14 nm limit. We can't miniaturize electrical computers beyond this point, and we'll hit this limit some time this decade, perhaps as soon as 4-5 years! They better come up with something soon.

[Paganel75]

@fuunguus : Visible light ranges from 380 nm to 780 nm. Do not expect anything smaller to be able to use it.



[lifemetall]

this is future, more power and smaller size

[sajabz2007]

So it won't be long till I see a super computer CPU on my phone. Sweet!

[Paganel75]

@sajabz2007 : You already do. The computing power of any iPhone or Android device on the market is slightly better for many operations that what was available on a Cray some decades ago.

[Ecurrie84]

This is teleporting information using light, yes I said teleporting! look it up.

The next step is to teleport something solid, they say water is what they will use.

[zomfgman]

Lol @ Mrxbox for being retarded, and rulta for being relentless xD

[wilcox71]

texas instruments if i remember right had a working chip using this sort of technology ten years ago. i wonder what happened to it. it was huge though.

[dragonlovers5]

ver can i get vun uv zeez zilicon cheeps, or vatever dee heck yoo call dem

[telesniper2]

heres the old hype video from IBM:

watch?v=MIL5EMbzBjM&feature=re­lated

[The4LA2Baker0]

basically a quantum leap in FSB, or is there more to it?

[emuvente]

basically, yes. a massive quantum leap.

[moniker127]

You know I heard about this a long goddamn time ago. Infact just the other day I got an email from myself using one of those sites that holds an email untill X day and then sends it back to you. In the email (which was sent in like 2004) I said that I damned well better have one of these by now. Lol, and its just as far off today as it was then.

[telesniper2]

I was just thinking the EXACT same thing, I saw this 2-3 years ago from IBM too!.

[AggressiveAtheist]

What happens if dust gets into that computer?

[yenawine5150]

if they encase the paths the photons travel down in a airtight tube or enviorment it might prevent that

[Smartlack]

From the title i thought "Firewire" lol

[Ashitaka255]

was just thinking of this yestersay i.e. using light instead electricity as they've done with fibre optic cables instead of copper for broadband connections.

[thegotcode]

I will love to work with IBM

[r32adt3db]

They've been working on this shit for years. I think it will be the next big leap in technology and drive the computer industry again, similar to the 90's when innovation was coming like crazy through the pipeline. Hopefully, because our economy should could use a boost again.

[NexusTen]

what happened

[bianoloureiro]

eletric speed depends of material resistance.

[hoboX10]

40 gigabits per second DX Holy shit!!

[333HELIOS]

speed of light is 360,000 km/sec...so electricity is what?

[paralleltojesus]

@333HELIOS

2/3 of that

[SilverMoon925]

It's 300 000 Km/sec

[333HELIOS]

so basically its like light, but the metal slows it down..or watevr it goes thru?

[Mrxb0x]

Electricity goes at like 72 mps, while light goes at like 400,000 mps

Around there. So it's extremely fast in comparison.

[rulta]

electricity doesn't have a speed lol

[Mrxb0x]

@rulta You're a fucking retard.

lol.

[rulta]

@Mrxb0x i think you are the retard sir. electricity is a current flow with electrons. the "speed" of the current differs. show me one link that claims that what you are saying is true and i will admit that im wrong. how ever, you won't, so i win.

[Mrxb0x]

@rulta

Holy fuck you are truly stupid. The speed of electricity is how long it takes it to travel from one place to another. Thus electricity has speed. Just because it differs doesn't mean it doesn't have a speed. Fucking retard.

[rulta]

@Mrxb0x you said that electricity goes at like 72 mps, now tell me that isn't a fucking retarded thing to say! saying electricity has a speed is like saying "humans run at 5 mph". It depends how fast you wanna run. Light, how ever, has a speed. There is a big difference. Quit calling people retards just because your mom doesnt let you go out after 8, you are the retarded one.

[Mrxb0x]

@rulta

What ever the electricity is traveling through affects its speed.

[Mrxb0x]

@rulta YOU STUPID F U C K.

I never said it's speed is constant HOLY SHIT you're fucking retarded. God dammit fuck off and stop replying jesus fucking christ you dumb piece of shit.

[rulta]

"Mrxb0x Electricity goes at like 72 mps" <---- short memory or just the retardness?

i can reply all day, and you can't do shit about it.

can't help that you take out your anger online. but i guess fuckers like you have to, since you're probably too skinny to kill anything living irl. get out and get some real friends instead of making lame insults to strangers on youtube

[Mrxb0x]

@rulta

I'm not taking my anger out this is how I always talk to retards. They need to know where they stand.

[Ashitaka255]

its 300,000 m/sec

[TTPrometheuS]

@Ashitaka255 It's 299,792,458 m/s approximately.

[Ashitaka255]

@TTPrometheuS yup, I guess I got used to thinking it as 300,000 m/s and never bother to make sure.

[Nekiu]

Electricity is the flow of electrons.

Photons move at the speed of light

[333HELIOS]

Ahh...

[tobebius]

speed of light, makes sense... and it was staring right in the face along........duh!

[RuyABC]

The IBM after invention of atomic manipulation show one time more one grand feat.

[9AndS]

IBM were the first in developing and creating new technologies. IBM is the father of the computing world we now live in.

[MayaPeterson]

tem coisas que não querem que a gente saiba mas graças a pessoas idoneas temos como saber da verdade, veja no meu video e interprete

[Fanclube100]

Copie e cole na pesquisa do youtube: (I´m yours - Acauã), e clik no primeiro item que aparece, para conhecer a versão oficial brasileira dessa musica. Valorize o artista Brasileiro, faça seu Download e divulgue o que é nosso.

Um abraço, Fã clube

[Wormtail81]

Light computers, here we come!

[NineTailsDemonFox]

@Wormtail81 not here we come - there we go. It's been used for a while.

[GoodChineezeCheeze]

IBM is VERY good in research, but vary bag in consumer business. It was IBM who developed multicore CPU technology, but who is making mony on this technology? Intel!

[adamhaye]

well intel and amd make consumer level electronics, IBM focuses purely on the supercomputer crowd and other very high end applications. IBM developed cell-based architecture and licensed it to sony, so they make money off ps3, i'm sure IBM has many other IP patents and such, plus they're developing the software for China's high speed trains, etc etc (huge company doing shit all over the world).

[Ashitaka255]

They don't make money off sony.

[dunkelblau2006]

How many Gbps/Tbps do chips using copper wires communicate at. Can this technology be also used on bigger size networks that use fiber optic cables? I think that good fiber networks communicate at a couple of dozens of Gbps

I don't remember accounting for wire transmission time on computer architecture class although most of it was within chip so I don't think it counts. Anyway great stuff IBM, keep it up.

[deusAtheismus]

I wonder that too. How many gigabits per second does coppar wires communicate at?

[soylentgreenb]

In a normal kind of chip the signal can only change once each clock. If you have a 2.4 GHz processor each wire can carry 2.4 Gbps. The biggest problem is not the throughput, you can just use more wires, it is the latency(it takes 1 clock to transmit a signal 1 mm across the surface of the chip!) and the power consumption.

The motherboard is a bit different. It uses a low clock frequency to save power but the data is sent at double or quadrupple rate.

[soylentgreenb]

An X86 CPU spends an enormous amount of power and silicon area to optimize for single-threaded execution. The actual computational units is only a watt or two.

A huge part of this cost is in dealing with latency. It takes several hundred clock cycles round-trip to request some data from memory. So the X86 chip must agressively cache, predict what data it's going to need hundreds of clocks ahead of time so it can precache it, execute instruction out of order while waiting on cache and so forth.