Jihad needs scientists
in [Design]
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From: jmfbahciv on 28 Feb 2007 07:06 In article <87ejobds6m.fsf(a)nonospaz.fatphil.org>, Phil Carmody <thefatphil_demunged(a)yahoo.co.uk> wrote: >jmfbahciv(a)aol.com writes: >> In article <87y7mkflv6.fsf(a)nonospaz.fatphil.org>, >> Phil Carmody <thefatphil_demunged(a)yahoo.co.uk> wrote: >> >jmfbahciv(a)aol.com writes: >> >[SNIP] >> > >> >I physically not bear to have any of your garbage included >> >in this post, lest through searches of archives my name be >> >associated with your insane ignorant gibbering. >> > >> >However, let me just say that I disagree with basically >> >every sentence in your post. It ranges from meaningless >> >to irrelevant via liberal splashings of just plain wrong. >> >> I know that you have your mind set to interpret everything I write >> to be 100% wrong. You have stated this over and over ad nauseum. >> >> Aren't you getting bored writing the same thing numerous >> times every day? > >No, this is sci.physics, where on principle I use no killfile. >(You're in my killfile in every other group on usenet; Strange. I don't post to every other group on usenet. <snip> /BAH
From: jmfbahciv on 28 Feb 2007 08:03 In article <es1hop$89d$5(a)blue.rahul.net>, kensmith(a)green.rahul.net (Ken Smith) wrote: >In article <es15jr$8qk_003(a)s924.apx1.sbo.ma.dialup.rcn.com>, > <jmfbahciv(a)aol.com> wrote: >>In article <eruv57$vf3$8(a)blue.rahul.net>, >> kensmith(a)green.rahul.net (Ken Smith) wrote: <snip> >>And my mother just bought an ink pen that is supposed to prevent >>lifting their signatures. I don't understand this one but her >>area's latest alert is to use a special pen to sign checks. > >This can be the rumor mill running away. Use a blue pen to sign. It's not likely a rumor. Their local radio station designs their programming to provide services to their listeners. It's probably one of the few remaining who do so; the guy who is behind this kind of programming has retired and does this stuff for a hobby. The shows are regular and have experts provide the latest information and take calls to answer questions. If it's a rumor, then the experts believe it, too. /BAH
From: jmfbahciv on 28 Feb 2007 08:13 In article <es1ive$89d$6(a)blue.rahul.net>, kensmith(a)green.rahul.net (Ken Smith) wrote: >In article <es173c$8qk_001(a)s924.apx1.sbo.ma.dialup.rcn.com>, > <jmfbahciv(a)aol.com> wrote: >>In article <eruvnn$vf3$9(a)blue.rahul.net>, >> kensmith(a)green.rahul.net (Ken Smith) wrote: >>>In article <eruj75$8qk_001(a)s965.apx1.sbo.ma.dialup.rcn.com>, >>> <jmfbahciv(a)aol.com> wrote: >>>>In article <ershih$ui3$7(a)blue.rahul.net>, >>>> kensmith(a)green.rahul.net (Ken Smith) wrote: >[....] >>>That is incorrect. Take this example of a list of five things: >>>**** begin list of five items **** >>>A bunny >>>A cat >>>A dog >>>**** end list of five items **** >>> >>>Can software look at that and tell if there are items missing? This is a >>>simple case of redundant information allowing the detection of an error. >>>It is the sort of thing that is in the first steps of repairing. >> >>I know what I'm talking about. > >You don't seem to me making clear points on the subject. I can't help that. When you read my stuff with the initial assumption that it is going to be wrong, the onus of clarity is not on my shoulders. > >> In the case of sources, if your >>procedures don't make you use them once in a while, they can >>disappear and be gone for years before anybody discovers that they're >>missing. > >Does "sources" in this case mean source code? Yes. > Assuming yes, this >statement is not actually true. You are wrong. > You only need to have an effective check >that the files are still the same as before. You don't have to attempt to >compile. A compilation guarantees that every thing that is needed to build the product is present. When a system has run without any problems for years, there is ususally nobody around who can build it nor maintain it; the first person to find a job is the one who babysits sources. When they're not actively changing, it doesn't make any sense to a manager to pay somebody to watch paint, that was designed never to dry, dry. > >> Without a backup safe policy that covers at least a decade, >>you have to have some other way to make sure files don't disappear >>with your notice. > >The issue is to make sure the files never disappear or get damaged. The only way to do this is to make the usage of them a part of daily computing life. > This >can be done with a procedure that doesn't require the very old media. >Checks like the CRC are quite effective. Nope. It is not effective over the long term. > >I have code on CD that started off on 8 inch floppy. > > > >>>What is missing? >> >>The access date-time, last-written date-time, and last-read date-time >>should be three separate date-time fields. There is a fourth >>that is moderately useful, but I can't recall what that one is. > >Linux stores creation and modification dates. That is enough. No, it's not. Access dates are also important in backup procedures. > > >>>[....] >>>>>Yes it does cover transaction based data. Take the example of banking >>>>>information. The account balances as of, lets say, midnight are stored. >>>>>From that point forwards, you have the transaction records. The >>>>>transaction records for a given account contains not just the movement of >>>>>the money but other information such as the new total. In this case one >>>>>needs only look back in time for each account to the last time there was a >>>>>break in the transactions. In a real time system, when you are doing >>>>>rapid transactions, the totals are always out of date. The first >>>>>transaction after a break, has a correct total. >>>> >>>>It means that such a system has to have some way to "replay" the >>>>transactions (all of them in sequential order) from the point of >>>>the snapshot. This is also a form of a backup that needs to be >>>>kept in at least three geographical, (and networked, I think) at >>>>once. >>> >>>No, you didn't read the above carefully enough. You can work backwards >>>through the data and still get the right answer. >> >>That takes a lot of time and care. Some transaction processing >>doesn't have the luxury of time. > >It does take a lot of time. The "care" is having well written software. >If the system is damaged, you have to repair it. This is just life. You >can do things to prevent the damage in the first place but this is not the >issue we are talking about. We got here by talking about backups. And what if the breaking was done by something that is on those tapes? Whenever you restore the tapes, the system proceed to break again. > > >> >>> You may not have to >>>process back to the snapshot. The information needs to be stored in >>>multiple locations but these days that only takes a little money to do. >> >>Another problem that needs to be solved is off-site storage that >>doesn't degrade and still be able to read after a decade of >>hard/software evolution. I don't think anybody has produced >>a method yet. There is one going on but the only way to verify >>that it works is to wait a decade ;-). > >You can transcribe the data every so often. You can never verify that bits were dropped over the long term. Copying is not a good method of keeping a snapshot of something in the past. The copy is a new file. It is not the old file and there is no guarantee that something hasn't changed. There exists a Murphy's Law corrollary that guarantees each time a file is opened an error will be introduced. > Since the media has gotten >denser with time, this make sense from a cost point of view. That big >hole in the mountain in Utah is only a limited size. YOu still have a lot to learn about bit management. /BAH
From: T Wake on 28 Feb 2007 08:53 <jmfbahciv(a)aol.com> wrote in message news:es3ujm$8qk_002(a)s823.apx1.sbo.ma.dialup.rcn.com... > In article <es1hop$89d$5(a)blue.rahul.net>, > kensmith(a)green.rahul.net (Ken Smith) wrote: >>In article <es15jr$8qk_003(a)s924.apx1.sbo.ma.dialup.rcn.com>, >> <jmfbahciv(a)aol.com> wrote: >>>In article <eruv57$vf3$8(a)blue.rahul.net>, >>> kensmith(a)green.rahul.net (Ken Smith) wrote: > <snip> > >>>And my mother just bought an ink pen that is supposed to prevent >>>lifting their signatures. I don't understand this one but her >>>area's latest alert is to use a special pen to sign checks. >> >>This can be the rumor mill running away. Use a blue pen to sign. > > It's not likely a rumor. Their local radio station designs > their programming to provide services to their listeners. It's > probably one of the few remaining who do so; the guy who is > behind this kind of programming has retired and does this > stuff for a hobby. The shows are regular and have experts > provide the latest information and take calls to answer questions. > > If it's a rumor, then the experts believe it, too. Doesn't mean it isn't a rumour.
From: Ken Smith on 28 Feb 2007 10:04
In article <es3r5k$8ss_001(a)s823.apx1.sbo.ma.dialup.rcn.com>, <jmfbahciv(a)aol.com> wrote: >In article <es1hfu$89d$4(a)blue.rahul.net>, > kensmith(a)green.rahul.net (Ken Smith) wrote: [....] >>Well then move. You've said enough bad about this back water you live in >>to convince me you need to move. > >The state I live is proud of the fact they consider themselves >Liberal and Progressive. It is usually a field test site of new >ways politicians to dip into your cash reserve. It can't be much of a "blue state" if it doesn't have good banking etc. We know that Democrats on the average have more money and a better education. [....] >>You don't have to have it connected. You just walk into the bank and pay >>it by talking to the teller. > >It doesn't work that way. Which piece of paper do you fill out >to pay the credit card? I don't fill out any paper. The bank my mother uses has tellers that you can just hand your credit card bill to show them some good ID and enter the PIN number on the little machine and they do the rest. > Do you include the credit number on >this piece of paper? If you do, now there is a document that will >be scanned into bits that has both your account number and your >card number. But it never sees your home computer and you have never transmitted the data electronically your self. >>>I'm trying to develop a safe way for them to function. With >>>the removal of using checks, there is none that is as >>>convenient as checking so far. >> >>The credit / debit card is likely the best. My mother has been using one >>for years. She keeps a small amount of money in its account. If >>something major comes up, she can use the credit. > >The banks that we use don't allow small amounts of money in accounts. >If the balance falls below a minimum, fees are charged. The amounts >charged are enough to buy the milk. Go talk to the bank. Your parents are over 55. There are usually special programs. You have to ask to get them though. -- -- kensmith(a)rahul.net forging knowledge |