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Hardware Hacking

Journal Journal: Hardware notes, updates

So I've dusted off the 468 scope again, the one I bought for 40 kroner or so, some years ago and had another investigation of its malfunction. It looks like there is something wrong with the ROMs as it doesn't get very far from start-up to halt. (pins 29 and 33 on the 8085 going both LOW). I've managed to find some memory dumps of these on the Internet, so I'll try burning 2764s and connecting these, then see what happens next.

Comment Re:news @ 11 (Score 1) 336

This is not going to work, as there is no competing with free. If any news site starts requiring payments, most readers will go somewhere else that doesn't pay. Charging for access to a site that still emits advertisements is a very hard sell.

And if the news outlets all start charging at the same time, the readers will start reading (and writing) blogs instead. And perhaps even pay "tips" to those blogs they like.

The harder one tries to squeeze the more it will slip past one's fingers...

Comment Re:Carbon-based for a reason (Score 2, Informative) 267

Yes, and both phosphorus and arsenic are Group V, with 5 electrons in their outer shell so they can be expected to have chemical properties that are similar. But the main material of living things, carbon, will more than likely be the same, for reasons of carbon's unique abilities to form complex compounds.

Silicon-based life with phosphor or arsenic? Apart from this sounding very much like the list of main ingreidents for N-type semiconductor material; silicon, while in Group IV like carbon, with 4 electrons io their outer shell, does not form the same complex molecules as carbon. There is silane, SiH4, analogous to methane, CH4, and silicon dioxide, SiO2, the analogy to carbon dioxide, CO2, and a handful of others, but larger molecules such as sugar or protein analogues just do not form easily from silicon, or fall apart too easily.

There are not that many other elements that possibly oould replace carbon.

Comment Re:back button (Score 1) 11

I think that is IE6. Once upon a time I had a similar problem with VG's, one of the Norwegian newspapers' discussion forums. Some friendly debaters then recommended I use Opera... that fixed that particular problem. Of course, later I've found out that Firefox also retains edit-box text; now the next level of competition is seen in this webmail client that we sometimes have to use at work, when I hit the wrong key and everything goes away and no bringing it back...

Comment Re:General fiction at this point (Score 1) 1397

Same thing happened here. It began with cartoon characters, then continued with various other names from space, mythology, and fiction. The problem with cartoon characters is that one seems to run out of them too quickly. And I don't think naming a server Marvin or Kenny ever was such a good idea either...

Somehow naming the various NAS boxes after satellites made a bit of sense too. Other objects of the heavens also will do, then watch out for the naming collision: Is it Pluto the dog or Pluto the former planet?

Comment Who is supposedly profiting anyway? (Score 1) 301

Based on the spam I get here, there is no big incentive to buy anything from whoever's business being advertised to begin with. To the extent there even is any kind of business there at all.

To illustrate, from looking at some recent deleted spam I make the following observations:

First of all, my penis is just the size it should be and it works the way it should, so no need for enlargments and viagra, nor, presumably, subsequently having to carry it around in a wheelbarrow.

With that taken care of, next, I don't have time to do contract negotiations with alleged attorneys claiming to represent rich deceased people whom I've never heard of, living in countries where I've never been.

Neither do I care about spending time attempting to claim a prize in lotteries where I never bought a single ticket.

I don't use Paypal in French either.

Then there are the bankers in Ghana that send me notices of their new e-mail address, with wild and wonderful and completely unrelated titles. Since all these notices are basically formatted the same way, the precipitated hypothesis is that there are a lot of bankers in Ghana, and all of them are getting yahoo.com e-mail addresses. Well, I don't need Ghanesian banking services any time soon. If I ever should, I'd deal with someone whose e-mail address had a reasonable resemblance to the name of the bank and the country the bank is operating in, not just some random attention-getter I found in the spam-box.

And that is just looking at the stuff that comes in a language I can read. Sometimes it is Chinese or Hebrew, and sometimes it is in some mysterious language that merely renders as garbage.

Point of all this, there is hardly any legitimate business or services of any kind advertising through this spam channel at all. Hence no one to boycott.

Makes me wonder why do they bother.

Comment Re:Assembly (Score 1) 962

Expressions containing the assignment operator, like x = y + 5, might look the same as statements of algebra, but the value on the left of the assignment operator does not behave as an alias for some specific value, but as a kind of box into which the result of the calculation ends up stored. Hence we get "impossible" statements like x = x + 3, which is perfectly OK in a fair number of programming languages, but inconsistent and illegal as a statement of algebra, where one of the important rules is that any variable name always is an alias of the same value wherever it appears in each equation.

To someone who is shaky in regular algebra, this exception is mind-boggling.

Comment Re:Induction (Score 1) 397

The "high gain" inductive connection is a transformer itself, with the primary in the base and the secondary and batteries in the moveable part. And this kind of separable transformer makes a lot of good sense for toothbrushes, shavers, and kettles, where moisture and water is nearby. However, there is no energy transfer taking place unless the kettle or handle is sitting on its base.

Now I can't quite imagine how that "charging table" would not use some minimal amount of standby power for at least the circuitry that detects the presence of a phone or ipod or portable mp3 player or whatever.

Slashback

Journal Journal: The good, the weird and the ugly 1

Okay, what is up with the "home" page now? Looks like some unconnected CMOS input in the works, with what appears to be some random mixture of recently moderated comments, my own journal entries, comments that I have posted and other comments that I can't even remember having seen before...

Operating Systems

Best OS For Netbooks and Underpowered Tablets? 272

vigmeister writes "I hopped on the netbook bandwagon early this year in a rather odd fashion by picking up an outdated portable tablet (Fujitsu P1510) which just about matches the latest, greatest netbooks for their performance and portability features, while nipping them by managing to give me a better battery life. I've been happy using XP Tablet on this machine until recently, when I started thinking that by optimizing the OS for targeted use, I may be able to squeeze more out of the device. So, my questions are: What OS would you recommend for a netbook/outdated laptop? Usage is typically light — web surfing (with multimedia), email, word processing, spreadsheet and reading PDFs. Also, what OS would you recommend for a ultraportable tablet? Usage is similar to a netbook; there's a little more document editing going on, and good handwriting recognition and note-taking software would be great." Read on for further details about vigmeister's question.
Transportation

Journal Journal: From metro railway to rollercoaster 5

This morning, it was discovered that the earth underneath the metro tracks at Gjønnes station had shifted upwards. Picture here. The vertical alinement here used to be level -- now one track has a vertical curve like a hilltop, and the other is twisted sideways inwards towards the platform. The overhead wiring hangs in tatters -- some neighbor had seen a flash and heard a bang sometime during the night when the 750 V

Networking

Journal Journal: Fiber in the house! 1

Finally, they managed to get a working fiber in here. The first one they pulled was no good, so the fiber-installing people had to come an put in a new one.

Then it was a matter of minutes before "We get signal!"

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