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Slashback: HETE, HP, Regression

Slashback with more on cheap satellites, the relative speeds of threads under Linux and two strains of Windows, a skeptical response to the idea that crowds of people are retreating to dial-up access, and some tantalizing hints at products killed along with the HP calculator division. Lies, Damn Lies, Statistics, Benchmarks, Etc. Writing with a followup to the Slashdot post titled, "Who Has Faster Pipes? Linux, Win2000, WinXP Compared" Splinton had this to say: "In this article, Ed Bradford compares semaphores, mutexes and window's critical sections. Pthreads look good, but Win2Ks critical sections are twice as fast again!"

The computing equivalent of Area 51? A short while back HP closed its calculator division. Many have thought HP's calculator department was unprofitable. This was not the case. Many have thought they had no innovation. This was not the case. Turns out that management had 4% workforce to kill and they were part of the cut.

This article explains more. It turns out they had designed several Linux based PDA's ready to produce that were killed by management. Sounds interesting? Go check it out.

The biggest expense was the 12 gross of Estes D engines ... Satellite Designer writes: "The topic of low cost satellites having been mooted here recently, I though I'd alert readers to another such project. The HETE-2 satellite recently located a cosmic gamma-ray burst precisely enough that (with a lot of help from friends) an afterglow was detected, identifying its source. HETE-2 cost $26 million, only 1/3 of what a 'small' scientific satellite normally costs.

A lot of commercial 'off the shelf' technology went into HETE. Nothing from Radio Shack, but there are quite a few parts from Digi-Key onboard. You can't save money by using cheap parts (but you *can* save money by using easily obtainable parts), and you can't achieve reliability by using expensive parts (but you *can* help reliability by using the parts best suited for your application). The radical thing about HETE's parts selection was that it considered parts in the application context (as one would do in a normal engineering process), rather than restricting selection to a QPL assembled to meet irrelevant requirements.

The real trick to keeping costs down is to do the job with as small a team as possible in the minimum time possible. Rather than employing a large team of specialists, HETE's scientific investigators did much of the engineering and technical work. A small, carefully selected engineering team filled in the knowledge gaps."

Quitting isn't easy, and why bother? dmarsh writes: "This new article from C|Net seems to be a total contradiction to last week's "Dump Broadband, Dig Out Your Modem!" thread's article. I guess the important difference being that this one is backed up by an actual survey by the National Cable and Telecommunications Association."

Goes to show, in a large group of people you can probably find at least some who fit nearly any premise. As always, question the source ;)

9 of 233 comments (clear)

  1. I wonder about the statistics by Anonymous Coward · · Score: 4, Insightful
    The 825,000 new subscribers brings the total number of U.S. cable modem customers to 6.4 million, about 9.1 percent of the 70 million homes able to receive the service, the National Cable and Telecommunications Association (NCTA) said...

    I wonder whether (1) this many people signed up for the service during the period, or (2) this many people finally received their hardware/installation. Everybody knows that the pool of broadband installers is vastly outnumbered by the pool of broadband salespeople. No flamebait here, just wondering if the mass sign-up occurred in 2Q or 3Q...

    Also, consider the source of the statistics ("Our research shows that our product is 100% safe...")

    My broadband provider starting sticking extra fees into my bill earlier this year. It's only $6/month, but it's still lame as hell. I'm revolting by dusting off my ol' 56K USR at home & taking advantage of that T-1 at work. BellSouth can rip off someone else.

  2. Cable vs. DSL by Dominic_Mazzoni · · Score: 5, Interesting

    The other difference between the two articles is that the latter one is talking about Cable in particular, rather than "broadband" (i.e. both Cable and DSL).

    I used to have DSL. When I moved, I tried a Cable Modem instead. I found the quality of my connection was better, and the service technicians were far more knowledgeable. Of course, that reflects more on the individual companies (Verizon for DSL vs. Charter for Cable) than it does on DSL vs. Cable, but considering the number of people I know who gave up on DSL because of technical problems, I wouldn't be surprised if DSL is losing business to Cable.

    Here in Pasadena, Cable is cheaper and they can come install it within a day or two of your order. When I got DSL, I had to wait six weeks for the first visit, and it took them quite a few tries to get it working.

  3. PR hogwash by Exmet+Paff+Daxx · · Score: 5, Insightful

    this [survey] is backed up by an actual survey by the National Cable and Telecommunications Association.

    -Slashback

    Goes to show, in a large group of people you can probably find at least some who fit nearly any premise. As always, question the source ;)

    -Timothy

    Well, OK, let's question the source. the National Cable & Telecommmunications Assosciation is "is the principal trade association of the cable television industry in the United States". So basically, they're the RIAA of the cable industry. And they just published a survey that says that consumers are subscribing to broadband in mass quantitites.

    Ok, I question the source. This is like Shell Oil publishing a study that concludes that burning gasoline provides valuable fertilizer for wetlands. Why give PR machines free press?

    --
    If guns kill people, then CmdrTaco's keyboard misspells words.
  4. Seeing is not using by Wonko42 · · Score: 5, Insightful
    I saw XP at a Fry's and was not impressed. It contains more graphics and junk, which means that it needs yet more powerful computers than before to accomplish the same tasks.

    You saw Windows XP at Fry's? I'm assuming you mean you saw a demo computer running XP, and not that you merely saw the box sitting on a shelf. By your logic, I could say "I saw Linux at my friend's house and was not impressed. It was nothing but text and stuff."

    I shouldn't have to tell you that the interface isn't the OS. If everyone judged Linux by its interface and nothing else (which, unfortunately, is often the case), people would have an absurdly skewed view of Linux. Think about how many different window managers and themes there are for Linux. Just because one of them looks like shit doesn't mean the underlying OS kernel sucks.

    The same holds true for Windows. Sure, the interface may be full of goofy alpha blending and unnecessary menu fade-ins and mouse pointer shadows and other things, but when you replace explorer.exe with a third-party shell (or merely disable the extra eye candy via the Control Panel), all that stuff goes away and you're left with what is without a doubt the most stable version of Windows I've ever seen.

  5. Re:Two strains of Windows, eh? by SuzanneA · · Score: 4, Insightful
    OTOH, it also means that any new 'anti-open source' technologies that they introduce in XP or future OS releases are less likely to become the de facto standard.

    I'm not saying any of those technologies are in XP, I don't know, I have it (via MSDN) but have no intention of installing it on any machines, as you say, there simply isn't any real incentive.

  6. Re:HP calcs unprofitable?? by dprice · · Score: 5, Insightful

    In the last couple years, HP's philosophy has been to concentrate on a few areas. It was the reason that they spun off their test and measurement division as Agilent Technologies. HP currently wants to concentrate on computers and the internet. I guess the calculators did not fit into their vision of a computer and internet world.

    Personally, I think they should have given the calculator division to Agilent when it was spun off. It seems to line up with Agilent's mission of making specialized electronic devices.

  7. Missing link for Ed Bradford's article by Sapien__ · · Score: 5, Informative
  8. Broadband defections. by GISboy · · Score: 4, Informative

    I have to admit, I've considered getting away from cable.

    Reason: downloads could hit 400+K/s uploads could hit 200K/s (not bits, bytes).
    After a year, down ~= 200+K/s upload capped at 128K/s. Ok, fine and dandy.
    Insult to injury came when dowload rate varied (no biggie) but a second cap at 128kbits.
    When questioning the provider and calling the corporate office I got "Oh, we meant 128kbits not Kbytes".

    Uh, huh.

    The sad part is no one noticed the drop off in cable revenues at, or shortly after 2 things:
    Killing off the *.divx groups and 'capping people off at the knees' as far as uploads.

    By capping off uploads and killing off the divx groups @home completely negated the purpose of broadband

    Include the caving into the MPAA w/o so much as a defense of its own customers much less adhering to "innocent until proven guilty" therom.

    If DSL could provide a 128Kbyte up/down rate and eliminate the install hassles and provide the service for 20 to 25 bucks a month...I'd jump on that in a heartbeat.
    If the had a you want faster, you pay more scheme (which @home does not do...WTF?) I'd use it and I'd *recommend* other cable users do it as well.

    I can not tell you how many ppl I've recommended cable to because I lost count.
    Now I tell them DSL first, cable second if they don't mind "getting less" for the same amount of money.

    "once bitten, twice shy"

    Ok, in my case it was a nip first then a bite.

    Now I am shying away from recommending cable as a first step. Second step getting away especially if the 'veeceedee' groups start disappearing.

    Then a lot of us will have absolutely *NO* reasons for sticking with cable.

    --
    If it is not on fire, it is a software problem.
  9. Fast? Often just wishful thinking by Krischi · · Score: 4, Interesting

    Actually, critical sections are fast only if there is low contention for them. As soon as threads start contending for them, performance goes out the window. They also don't scale well with the number of threads, and they exhibit horrible performance degradations if the priority of the contending threads is not at a maximum. There is a great summary of the issues at http://world.std.com/~jmhart/csmutx.htm.