Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment Re:ok... (Score 5, Informative) 86

No. If your router supports the "external" authentication mode using only a PIN, it is vulnerable no matter which encryption type you use or how good your password is. I did not realize that there was such a mode - I too thought it required the pushbutton.

The easiest mitigation is to disable the WPS PIN on your router, re-enabling it when you want to add a device. Some routers may not have such an option, but at least mine does.

Scary.

Comment Re:Drat (Score 1) 122

The MiniPCIe standard includes SATA lines, as well as USB. So if you have an open full MiniPCIe connector, it probably has SATA capability. What you have to watch for, though, are slots that are physically MiniPCIe but which are wired for USB only (many notebooks and netbooks with WWAN connectors), or use non-standard pinouts for PATA (Dell Mini 9, for example.)

What is not clear, for the add-on user, is if the SATA lines are visible to the chipset. Usually mobile chipsets have 1 or maybe 2 ports for SATA.

In any event, these Intel cards are interesting for notebook and netbook manufacturers, less so for the end-user interested in a DIY upgrade.

Comment Re:By Processor (Score 3, Interesting) 130

System and component vendors don't make money on these "lighthouse account" supercomputer sales. My experience, having worked in the past for a vendor that did this a lot, is that they're a money-loser. The motivation is bragging rights, though that can be fleeting. I know of several times that my employer declined to bid on a supercomputer deal as it would just be too expensive.

Typically, these systems are actually sold by system vendors (Dell, HP, IBM) and not processor vendors, though the processor vendor will support the bid. That #1 "AMD" system is actually a Cray. Software also plays a large part in success or failure.

Comment Re:Clever, but he has a lot of work ahead of him (Score 1) 609

If you watch the video, you hear the inventor explain why a clutch is bad because it limits torque input and has wear. Yes, a clutch would certainly solve at least this problem, but the major benefit given for this design is to eliminate a clutch.

If the input is from an electric motor, no clutch is needed because electric motors have maximum torque at zero RPM and the "gear change" shaft can be allowed to come up to speed. Then again, most electric cars have very simple transmissions with a single gear, so again what's the point?

Perhaps what one can do is have a gear disengage and not re-engage until the transmission is in "neutral".

Comment Clever, but he has a lot of work ahead of him (Score 4, Interesting) 609

I think the weakness in this design is the need to rotate the "bottom" shaft at a speed equal to the input shaft for neutral. While indeed it doesn't need a lot of power, it's a lot of rotation where, in competing designs, a clutch disengages or the drive motor is idling. I could see a lot of things going wrong if the synchronization was imperfect, or if something went wrong.

How do you start this up from a dead stop? Somehow you have to exactly match the shaft rotation speeds to keep it in neutral before you start moving forward, otherwise there will be a lurch.

I look forward to seeing how this is developed further. It has a lot of potential.

Comment Re:Doubt it. (Score 4, Interesting) 227

I thought Intel had partnered with DEC to make the Alpha chip. Also Intel held the patents on it. Intel finally decided to tell DEC sorry but we (Intel) do not want to use these (the Alpha chip designs) anymore. Or something like that anyway. Intel forced DEC to stop making the CPU which left DEC screwed.

Sorry, that is not even close. DEC sued Intel over infringements of the Alpha patents in Pentium processors. One of the results of the settlement was that Intel acquired DEC's Hudson, MA fab (which still operates today). In no way were DEC and Intel partners in Alpha, though ironically, Intel ended up making Alpha chips in the Hudson fab for several years under contract to DEC. What killed Alpha was years of neglect by Bob Palmer (DEC CEO) followed by Compaq's cluelessness. HP ended up with both Alpha and Itanium and bet the farm on the latter, but by that time it probably didn't matter.

Comment Re:Not Very Comparable (Score 1) 227

Correction: Compaq bought DEC in mid-1999, HP bought Compaq in late 2001. Otherwise, you are mostly correct, though the majority of the Alpha design team ended up at Intel in 2001, when Intel acquired the Alpha architecture and compiler teams. Some Alpha designers did go to AMD and AMD licensed the Alpha EV6 bus for Opteron.
Earth

Researchers Pooh-Pooh Algae-Based Biofuel 238

Julie188 writes "Researchers from the University of Virginia have found that current algae biofuel production methods consume more energy, have higher greenhouse gas emissions and use more water than other biofuel sources, such as switchgrass, canola and corn. The researchers suggest these problems can be overcome by situating algae production ponds behind wastewater treatment facilities to capture phosphorous and nitrogen — essential algae nutrients that otherwise need to come from petroleum."
Space

Super-Earths Discovered Orbiting Nearby, Sun-Like Star 242

likuidkewl writes "Two super-earths, 5 and 7.5 times the size of our home, were found to be orbiting 61 Virginis a mere 28 light years away. 'These detections indicate that low-mass planets are quite common around nearby stars. The discovery of potentially habitable nearby worlds may be just a few years away,' said Steven Vogt, a professor of astronomy and astrophysics at UCSC. Among hundreds of our nearest stellar neighbors, 61 Vir stands out as being the most nearly similar to the Sun in terms of age, mass, and other essential properties."

Comment Re:My read from the trailer (Score 1) 82

I happened upon an exhibit of Tezuka's work at the Tokyo-Edo Museum when I was visiting Japan in April. It had a TV showing an extended clip from the movie. It didn't show anything that hinted at the overall plot, other than it evidently being, as noted in the interview, an "origin movie". All of the text on the displays was in Japanese, so if there was any explanation of the movie plot, it eluded me. As a big fan of the English version from the 1960s, I'm eager to see the movie, but my expectations are low.

Slashdot Top Deals

Disraeli was pretty close: actually, there are Lies, Damn lies, Statistics, Benchmarks, and Delivery dates.

Working...