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#16
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MUST I use TWO Memory Sticks?
CRNG wrote:
On Thu, 06 Mar 2014 18:23:47 -0600, wrote in Then again, if I was to buy a new computer, I'd likely buy a Macintosh. I'm tired of trying to keep up with MS upgrades, and the OSs they quit supporting. That's what several people I know have done. They're happy with the change. Macintoshes use an "upgrade treadmill" as well. Applications you run on them, only run on a limited set of OS versions. Try and get Wireshark running on your Mac, and figure out which version you should download from the site, to run with your Mac. (The Wireshark developers, don't tell you, requiring a "test it and see" approach.) A Mac can be just as much of a pain in the ass, as any other computing box. It was a better platform in years past, when they were the underdog, and were doing stuff to keep people happy. What's important for any computing platform, is whether there are good "main" web sites, with immediate feedback on problems. Sites like macintouch.com or xlr8yourmac.ocm are example. These provide unbiased articles about bloopers in your favorite OS, and how to fix them. If you relied on Apple press releases or Apple forum threads, you would be surely stuck. Before leaping on a platform, see how users manage it for themselves, and how much work it takes. Paul (who owns three Macs, and the G4 will be the last one I buy) |
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#17
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MUST I use TWO Memory Sticks?
In ,
J. P. Gilliver (John) typed: This (large netbook, SP3) came with 1G... What kind of netbook is that John? -- Bill Asus EeePC 702 ('08 era) - OE-QuoteFix v1.19.2 Celeron 900MHz - 8GB SSD - 2GB - Windows XP Home SP2 |
#18
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MUST I use TWO Memory Sticks?
In message , BillW50
writes: In , J. P. Gilliver (John) typed: This (large netbook, SP3) came with 1G... What kind of netbook is that John? Samsung NC20. I was given a long-service award for 25 years with the company, and decided I'd bite the bullet and go XP (I was still on 98SE, which I'd customised with lite, then), and also go portable; I took my time deciding (not least because the award was in the form of a sort of prepaid credit card which could only be used at a limited number of places). As it was approaching its expiry a year later, I'd more or less decided on the NC10, the ten inch model, which had the resolution I wanted; when I got to Selfridges (one of the few places I could use the card), they also had the NC20, which is the nearly 12" one, so (after a couple of hours' thinking) I went for that. I'm glad I did, as the keys are almost full size, which on the 10" netbooks they aren't. On the whole, I've been very happy with it, and use it as my main PC, for several hours most evenings. I thought I'd miss having an optical drive (that seems to be what makes the difference between a netbook [and now an "ultrabook"] and a laptop), so got an external one, but to be honest I hardly ever use it: everything's online these days. The only niggles I can think of: using the provided self-update eventually loaded a video driver which was susceptible to making the whole thing freeze (the excellent folk at sammynetbook showed which driver version to revert to and it's been fine now for years): and, when I first started using it, it managed Skype and YouTube perfectly well, but over the years less so (more jerky - though the videos are fine if downloaded and then played locally), which I think is something _I've_ done rather than changes in S & Y, since S even struggles on audio-only. (In an odd way - it's fine on first connection, then deteriorates over the course of a few minutes.) But I find the NC20 an excellent XP machine - as do other users, judging by what (last time I looked, I haven't recently) it goes for on ebay (it's no longer available new). -- J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf `A device called a transistor, which has several applications in radio where a vacuum tube ordinarily is employed, was demonstrated yesterday.' - small article on an inside page of The New York Times, December 1947 (Computing 1999-12-16) |
#19
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MUST I use TWO Memory Sticks?
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#20
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MUST I use TWO Memory Sticks?
micky wrote:
On Thu, 06 Mar 2014 18:18:02 -0600, wrote: it worked at all. The bios works fien, but the HD is shot, as well as No experience but still sutprised the HD is shot. They seem like they are sealed, unless the computer was on when it was flooded? The drive isn't sealed. It has a breather hole. Conventional drives equalize to atmospheric pressure. Say you pack a laptop in the car and take a trip. If you drive your car to 10,000 feet above sea level, the laptop hard drive "exhales" through the breather hole. If you drive back down to sea level again, the drive "inhales" through the breather hole. The breather hole has a hepafilter on the other side of the cover. That is supposed to reduce particulate that could get through. It will not stop certain smaller molecules, so it is possible something "corrosive" could cross the barrier. In addition, if you look at some of the older drives, they have multiple silver sticks, which cover holes (like, the servo write access port). If water or chemicals attack the stickers, the stickers could come loose. There is a brand new drive, which is completely sealed. It is the first of its kind. It will start shipping in the summer. That's the Hitachi 6TB "Helium" drive, where the HDA is filled with helium gas. The HDA must be sealed, to keep that gas in. Whereas conventional drives are just filled with breathable air. That's the drive you want to buy, if living in a flood zone :-) At a price of perhaps $1400 each, I don't think they plan on selling very many. Paul |
#21
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MUST I use TWO Memory Sticks?
In message , Paul
writes: [] There is a brand new drive, which is completely sealed. It is the first of its kind. It will start shipping in the summer. That's the Hitachi 6TB "Helium" drive, where the HDA is filled with helium gas. The HDA must be sealed, to keep that gas in. Whereas conventional drives are just So it will have a finite lifetime even if unused and sitting on a shelf: Helium molecules are the smallest there is (smaller than hydrogen molecules), and _very_ good at passing through things (they'll even pass into solid platinum). filled with breathable air. That's the drive you want to buy, if living in a flood zone :-) At a price of perhaps $1400 I thought at first you meant the sort that's filled with breathable air so that you could breathe it if submerged (-: each, I don't think they plan on selling very many. Paul Wouldn't ordinary dry nitrogen be better and cheaper? -- J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf "I'm a paranoid agnostic. I doubt the existence of God, but I'm sure there is some force, somewhere, working against me." - Marc Maron |
#22
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MUST I use TWO Memory Sticks?
J. P. Gilliver (John) wrote:
In message , Paul writes: [] There is a brand new drive, which is completely sealed. It is the first of its kind. It will start shipping in the summer. That's the Hitachi 6TB "Helium" drive, where the HDA is filled with helium gas. The HDA must be sealed, to keep that gas in. Whereas conventional drives are just So it will have a finite lifetime even if unused and sitting on a shelf: Helium molecules are the smallest there is (smaller than hydrogen molecules), and _very_ good at passing through things (they'll even pass into solid platinum). That's what I thought too. Hydrogen will also pass through metals, but at a slightly elevated temperature. filled with breathable air. That's the drive you want to buy, if living in a flood zone :-) At a price of perhaps $1400 I thought at first you meant the sort that's filled with breathable air so that you could breathe it if submerged (-: You'd be in serious trouble, if that's all the air you had with you. each, I don't think they plan on selling very many. Paul Wouldn't ordinary dry nitrogen be better and cheaper? The thermal conductivity looks pretty good. I know about the thermal conductivity, from a hint on a National Geographic special involving deep diving submersibles. The claim there was, the operator of the sub breathed a helium mixture, and the operator also tended to freeze to death. So you have to dress warm, if the walls of your sub are ice cold, and the boat is filled with helium. (The viscosity listed here isn't a factor.) http://en.wikipedia.org/wiki/Helium Thermal conductivity 0.1513 W·m−1·K−1 Viscosity (1.013 bar and 0°C (32°F)) : 1.8695E-04 Poise http://en.wikipedia.org/wiki/Nitrogen Thermal conductivity 0.0258 W·m−1·K−1 Viscosity (1.013 bar and 0°C (32°F)) : 1.6629E-04 Poise ******* Helium and hydrogen have another interesting property, but unrelated to the hard drive application. When you let Helium out of its compressed tank at room temperature, the gas gets hotter. "Thus, helium and hydrogen warm up when expanded at constant enthalpy at typical room temperatures. On the other hand nitrogen and oxygen, the two most abundant gases in air, have inversion temperatures of 621K and 764K respectively: these gases can be cooled from room temperature by the Joule–Thomson effect.[1]" I think it even raises the possibility of a leaking hydrogen tank, igniting the gas. There's an analysis here of all the myriad conditions under which it can happen. The pressure in the tank has to be a little too high, for the heating gas to self-ignite purely from the temperature. I've been burned by hydrogen (and been close to a decent sized explosion) - it's one of my favorite gases. I can't wait for hydrogen powered vehicles to show up :-) http://www.eng-tips.com/viewthread.cfm?qid=51712 Hydrogen storage at one time, was proposed in tanks with something like a zeolite filler, which limits the rate that the gas can come flying out of the tank. Again, thanks to the wonders of TV, we had an experiment years ago, where a rifle is fired at a zeolite hydrogen tank, and the leaking gas only creates a small flame (which helps prevent a catastrophic explosion from the leaking gas collecting). I don't know if they'll use zeolite tanks for cars in the future, or they have something better by now. (Mr.Google helped me find this.) http://www.nasa.gov/vision/earth/eve...r_zeolite.html These things are great, when somebody else uses them :-) Paul |
#23
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MUST I use TWO Memory Sticks?
On Mon, 10 Mar 2014 23:12:07 +0000, "J. P. Gilliver (John)"
wrote: In message , Paul writes: [] There is a brand new drive, which is completely sealed. It is the first of its kind. It will start shipping in the summer. That's the Hitachi 6TB "Helium" drive, where the HDA is filled with helium gas. The HDA must be sealed, to keep that gas in. Whereas conventional drives are just So it will have a finite lifetime even if unused and sitting on a shelf: Helium molecules are the smallest there is (smaller than hydrogen molecules), and _very_ good at passing through things (they'll even pass into solid platinum). filled with breathable air. That's the drive you want to buy, if living in a flood zone :-) At a price of perhaps $1400 I thought at first you meant the sort that's filled with breathable air so that you could breathe it if submerged (-: No, you want helium so you can use it as a floatation device. each, I don't think they plan on selling very many. Paul Wouldn't ordinary dry nitrogen be better and cheaper? |
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