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Comment: Re:Used to design HDD's (Score 1) 270

So I don't know when you used to design HDD's but you are talking rubbish.

not talking 2.5 drives - also the dual port devices are just the electronics and not the actual HDA

historically 2.5 drives are not as cost effective as 3.5 due to the majority were built with 5V only electronics.

my information is a bit out of date, I got out of drives when I moved out of the bay area.

Rubbish?

Eh, WD and Seagate still hit me up to come drink the Koolaid but I am not going back to N CA

Comment: Used to design HDD's (Score 4, Informative) 270

No difference between enterprise and home HDD's that I know of.

As for what "hammering and heavy use " of a drive is?

The biggest killer of HDD's is something called the CSS test cycle.

CSS = Contact Start Stop where the drive is booted up, spun up, and then shut down repetitively.

Generally, a HDD sitting there spinning away is not what kill them off,
however turning them on-off-on-off a lot is the most abusive thing that you can do.

I still think WD makes the best quality out there, but that's just my opinion.

just my 0.02 worth...

Comment: Re:How about optical interconnect? (Score 1) 156

by loose electron (#45305361) Attached to: The Mile Markers of Moore's Law Are Meaningless

Already been done between boards, for sure. Limitations of copper connections on PCB is at roughly 20GB/s - although there are arguments above or below that, that is what I have been able to get up to with some heroic measures.
http://en.wikipedia.org/wiki/Titan_(supercomputer)

Optical connections across boards has been done some but its generally not seriously explored due to the overhead associated with getting in-out of optical medium, people tend to just use copper and put more parallel paths in.

Optical inside the chips? Not there yet, something should emerge in quantum computers before we are all dead, right?

Comment: Moores Law Hits the Limits of Physics (Score 1) 156

by loose electron (#45296905) Attached to: The Mile Markers of Moore's Law Are Meaningless

http://electronicdesign.com/digital-ics/tiny-transistors-giant-molecules-moore-s-law-crashes-laws-physics

Give this a read.

Moore's law extrapolations are hitting the limitations of physics.

As for shrinking transistors?
Pretty meaningless, silicon hit the limitations of the interconnects a while back.

Parasitic capacitance has been the brick wall that people can not get past.

Comment: Costs more to do less = Dead at the start (Score 1) 33

by loose electron (#44451235) Attached to: Repurposed: Ground Circuit Board Waste Can Clean Up Toxic Metals

From the article:

  Although the boards can become effective adsorbents, he says the method for making the materials may not be as energy efficient and cost effective as for other adsorbents, such as granular ferric hydroxide, because of all the processing steps needed to produce the treated powder.

Conclusion - its dead before its even starts.

Comment: Re:Hardly A New Problem (Score 1) 112

by loose electron (#42063319) Attached to: Supercomputers' Growing Resilience Problems

Most MPP machines that I am familiar with have a system where the status and functionality of all nodes is checked as part of a supervisory routine and mapped out of the system. Bad Node? It goes on the list for somebody to go out and hot swap out the device. Processing load gets swapped to another machine.

Once the new device is in place that same routine brings that now functioning processor back into the system.

That sort of thing has existed for at least 10 years and probably longer.

Comment: A fake pumping himself up (Score 1) 249

by loose electron (#39142605) Attached to: MIT Lecturer Defends His Standing As Email Inventor

Good grief - looks to me like somebody trying to re-write history.
Look at:
http://www.vashiva.com/inventing_email.asp
Got his own web site pumping himself.

Then:
http://en.wikipedia.org/wiki/Shiva_Ayyadurai
A wiki page that many have said needs to be deleted.
I wonder who wrote that little work?

Maybe Big Brother can get him a job
working for the Thought Police!

Comment: Re:Old news (Score 1) 61

by loose electron (#37738088) Attached to: Nanomaterial May Allow Devices to Rewire Themselves

Yeah, reconfigurable electronics exists in many forms.
Whats unique and different here?
Can't see anything without some specifics of what they got.
Reclaims of reconfigurable analog circuits?
Analog circuits and systems tend to be niche and dedicated
(RF front ends, power systems, ADC & DAC's)
and the reconfigurables tend to be in the digital core of the system.
But then isn't that what we got SW for?

Comment: Not too many analog or power people here I see. (Score 4, Informative) 439

by loose electron (#36563986) Attached to: Power Grid Change May Disrupt Clocks

This is no big deal. What they are talking about here is the additive cycles in a day and not worrying about the compensation process for that.

Some basics:

Anything connected to the 60Hz power is at 60HZ, You can not connect a 61Hz generator to the grid.
In addition, when you connect a generator to the grid, you have to adjust its phase, as you bring it on line.
If the phase angle does not line up you get you get into a "tug of war" between multiple generation sources and that doesn't work.

The sine wave coming out of one generator has to line up with the other sine waves from the other sine waves from the other generators.

60 cycles/sec X 60 sec/min X 60 mins/hour X 24 hours/day = 5.184E6 cycle/day

  What the article is talking about is the adjustment of the generating stations on the grid so that at the end of the day you get that exact number of cycles across the grid, not one more not one less. It is "really close" without tweaking but not exact.

It costs money to do those tweaks, to get the numbers on the money. That tweak right now really doesn't serve much purpose anymore.

Noting exciting, or interesting here, this is not Y2K nonsense, move along...

"I have not the slightest confidence in 'spiritual manifestations.'" -- Robert G. Ingersoll

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