The keys are not required to access the binary. There is no encryption; the keys are just to verify that the OS image hasn't been corrupted. The entire binary has always been completely accessible from both the PC side (before transferring) as well as on the calculator.
Furthermore, the community has had the ability to load its own operating systems on the TI-83 Plus since 2002. TI had stated in 2004 that they had no problem with independent third-party OSes being loaded, as long as (understandably) no one distributed modified TI OS files.
The only new development here is that third-party operating systems can now be loaded onto the calculators without any hacks or preparation. In other words, they can be loaded in a user-friendly manner like the TI OS is loaded, and transmitted from calculator-to-calculator without having to run a special program beforehand.
This is a huge deal in gaining acceptance for third-party operating systems, because end users do not want to have to pull out a battery during validation or run a strange program before loading the OS. They'd rather just click and be done.
Virtual memory works in pages. You can have stuff at 1 GB *address* (not 1 GB of data) without having the preceding ~990 MB. It would be stupid to fill RAM and/or virtual memory with all the unused space.
Overclocking the 83+ is very similar to the 83 and other calculators. The French site should be sufficient as the procedure is the same - only the actual capacitor to replace is different, and perhaps the values. According to that site you want to replace C11 with a capacitor less than 27 pF (as you go smaller, the frequency increases along with your risk of instability).
Really the only hard part about overclocking is trying to solder on the board. The capacitors are REALLY REALLY small. My soldering iron had a tip that was as wide as the capacitor's entire length.
I don't know what's wrong with the slashdot submission process, but this isn't a new site.
That site has been around for nine years, and in fact it doesn't list any of the popular TI graphing calculators today. The TI-83 Plus, 84 Plus, 92 Plus, and Voyage 200 are all missing. (Incidentally, this French guide will show you how to overclock your 83 Plus).
Sure it's a great site for overclocking older calculators, but please don't say "something new" when this has been widely known for years.
A quick Google search turned up this company which seems to make exactly what you're looking for. You have to have a Mini PCI Type III connector and it only supports 3.3v PCI cards, however. It's a development tool so the cost might be high. You'll have to contact them for details.
You might also have trouble getting that to fit in a laptop. I'm sure you could buy raw Mini PCI sockets and boards and wire your own extension.
I'd like to point out that this OS works by use of the TIB receiver, which allows an OS not signed by TI to be loaded on the calculator. This works for the TI-89, TI-92 Plus, and the Voyage 200.
The other TI calculators with flash memory are the TI-73 and the TI-83 Plus. Personally, I've released the source for a rudimentary proof-of-concept OS (warning: knowledge of how to compile and send it required) for those just to demonstrate that a similar method exists. In fact, on the 83+ one can write to the flash memory with an assembly language program as well.
To those who ask what the point is, it's exciting. Writing your own operating system is quite possibly the hardest thing that a programmer can do. On the computer, it's unmanageable because of complexity, but you can still balance complexity with functionality on a graphing calculator. The TI-83 Plus uses a Z80 chip, and the 89/92+/Voyage 200 a 68000k, so assembly isn't too bad. Most 89/92+/Voyage 200 programs are written in C though.
Well what's happened is that I think I have unconsciously moved away from the initial character-based approach to cursive that we were taught, and go more by the overall shapes of words.
I have to read my handwriting one word at a time, because it's impossible to decipher one letter at a time. The letters are there, but they only make sense as a word. Thus, when I'm writing something unfamiliar like a scientific name or such, I have to cut my speed to about a third to write it so I can read later.
I think the best handwriting is what works best for you. I'm fine with my "chicken scratch" (as everyone else calls it) for notes, because I'm writing twice as fast as most other people. If I have to turn in a paper, then I type it. No problems.
I don't really like the 'S' either. Those letters with too many turns of the pen on itself are slow.
Cursive can be faster than handwriting, after years of practice. I can write 50-60 WPM in cursive, nine years after I first started writing everything in it.
There's just one tiny drawback, I'm the only person who can read it. But that's a problem with your character recognition, not my writing:)
I'm going to be a senior in high school next year, and I think I have some relevant thoughts about cursive.
When I was younger I always wanted to write in cursive, I'm not sure why. I tried to make my own "cursive" in first grade. In third grade, we were finally taught how to write it. No one liked it (except me). The teacher made us write everything in cursive; she told us that we would be using it for the rest of our lives. Points were deducted if we didn't write in cursive.
Then came fourth grade. All of a sudden the teacher told us that either print or cursive was acceptable. All the other students went back to print, because they found cursive harder to write in. I found it more efficient, so I've stuck with it over the years. Now I'm the only student I've ever seen at my high school who writes in cursive all the time.
I think the reason cursive is dying is that the teachers don't enforce it. In third grade, it was an uphill struggle trying to get the students to learn, and then they completely stopped teaching it as well as encouraging the use. Communication is about efficiency too. If you can't read what I've written, or I can't write it in a reasonable amount of time, then we don't have good communication. My cursive writing is mostly illegible to anyone but me, because it's evolved for maximum speed. As a result, teachers often can't read my handwriting, and other students don't even remember enough cursive from 8 years ago to decipher it. If the school system would stick with teaching something, then maybe we'd have more widespread usage of cursive. It's really not that much worse or slower than typing, just a different form of expression.
I suppose it's too much to expect the teachers to focus on cursive though, since here in Arizona they have to prepare students for the wonderful AIMS test.
Maybe by sponsors they mean that the companies donated copies of their software for the testing labs?
I don't think it would look good for the university to be using illegal copies of the software.
That can't happen. The United Nations signed a treaty in 1967, "Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies".
Anyway, Article I states that: "Outer space, including the moon and other celestial bodies, shall be free for exploration and use by all States without discrimination of any kind, on a basis of equality and in accordance with international law, and there shall be free access to all areas of celestial bodies."
Furthermore, Article II: "Outer space, including the moon and other celestial bodies, is not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means."
But the real kicker is Article IX: "If a State Party to the Treaty has reason to believe that an activity or experiment planned by it or its nationals in outer space, including the moon and other celestial bodies, would cause potentially harmful interference with activities of other States Parties in the peaceful exploration and use of outer space, including the moon and other celestial bodies, it shall undertake appropriate international consultations before proceeding with any such activity or experiment."
That basically says that you can't do anything that would harm other nations' rights to explore the moon. The question is whether stripping the natural resources counts as hindering/harming others.
We know how much the nerd wants to experiment:-). Over the years, I've electrocuted myself various times (by camera, electric flyswatter, power lines, et cetera), exposed myself to chlorine gas (don't worry, I stopped coughing after 7 hours), and spilling 11 M HCl on my toes. Not to mention other stuff like the pogo stick accident...the body is the ultimate machine; it's like running a Sun server.
When we can transform Mars into a haven for space nerds with a Genesis device!
Not only will we create a new planet, then we can take Venus and make it into Rura Penthe, thus finding a place for the RIAA executives to live.
Re:Please, enough already: Check out the link!
on
Ogg/Vorbis on Palm OS
·
· Score: 1
Quite a few Sony Clies have 66 MHz 68k processors. The T665C, NR70, NR70V are the ones I know of. All three of those also have a polyphonic speaker, and a MP3 player (via a DSP on the circuit board). So there is capability for very nice sound via the headphone jack, and with MemorySticks you can have plenty of space for Vorbis files.
The Slashdot editors clearly are in the Thanksgiving spirit: Two duplicate stories today so far; one more, and we have a turkey!
But the question is, will they have a perfect 300?
Follow the guide of history...
on
Ultimate Sleds?
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· Score: 1
In 1822 George Pocock was riding around England in a carriage pulled by kites. He used a metal spike which he dug into the ground to stop.
I think the same technique could apply here...just carry some sort of pick or metal tool that can drag into the ground, and then use that. Just make sure that you don't fall off the sled and then land on the point:)
More than funny, that's true. I now notice the difference between "whom" and the often misused "who", as well as those bumbling idiots who use a plural pronoun with a singular antecedent! (Example: "Everyone open their book").
That's why I said if someone didn't have the ability, then I understand suing. But let's be reasonable, unless you are a hermit, there is the ability to get a friend to read you the site. Or just call them! I definitely agree it should be accessible, but it's not cause to sue in my opinion.
And about me, to make an example, if there's something I don't understand, I ask a person. Same concept.
No he's not being denied access. It's more as if you were allowed into Target, but were physically unable to spend money, or something. He can have someone else read him the page too, I'm sure there's someone around him who can see. When there is a blind person who really has no way to obtain the content, then it's worth suing.
Slashdot Mirror
The keys are not required to access the binary. There is no encryption; the keys are just to verify that the OS image hasn't been corrupted. The entire binary has always been completely accessible from both the PC side (before transferring) as well as on the calculator. Furthermore, the community has had the ability to load its own operating systems on the TI-83 Plus since 2002. TI had stated in 2004 that they had no problem with independent third-party OSes being loaded, as long as (understandably) no one distributed modified TI OS files. The only new development here is that third-party operating systems can now be loaded onto the calculators without any hacks or preparation. In other words, they can be loaded in a user-friendly manner like the TI OS is loaded, and transmitted from calculator-to-calculator without having to run a special program beforehand. This is a huge deal in gaining acceptance for third-party operating systems, because end users do not want to have to pull out a battery during validation or run a strange program before loading the OS. They'd rather just click and be done.
Virtual memory works in pages. You can have stuff at 1 GB *address* (not 1 GB of data) without having the preceding ~990 MB. It would be stupid to fill RAM and/or virtual memory with all the unused space.
Overclocking the 83+ is very similar to the 83 and other calculators. The French site should be sufficient as the procedure is the same - only the actual capacitor to replace is different, and perhaps the values. According to that site you want to replace C11 with a capacitor less than 27 pF (as you go smaller, the frequency increases along with your risk of instability).
Really the only hard part about overclocking is trying to solder on the board. The capacitors are REALLY REALLY small. My soldering iron had a tip that was as wide as the capacitor's entire length.
I don't know what's wrong with the slashdot submission process, but this isn't a new site.
That site has been around for nine years, and in fact it doesn't list any of the popular TI graphing calculators today. The TI-83 Plus, 84 Plus, 92 Plus, and Voyage 200 are all missing. (Incidentally, this French guide will show you how to overclock your 83 Plus).
Sure it's a great site for overclocking older calculators, but please don't say "something new" when this has been widely known for years.
A quick Google search turned up this company which seems to make exactly what you're looking for. You have to have a Mini PCI Type III connector and it only supports 3.3v PCI cards, however. It's a development tool so the cost might be high. You'll have to contact them for details.
You might also have trouble getting that to fit in a laptop. I'm sure you could buy raw Mini PCI sockets and boards and wire your own extension.
The other TI calculators with flash memory are the TI-73 and the TI-83 Plus. Personally, I've released the source for a rudimentary proof-of-concept OS (warning: knowledge of how to compile and send it required) for those just to demonstrate that a similar method exists. In fact, on the 83+ one can write to the flash memory with an assembly language program as well.
To those who ask what the point is, it's exciting. Writing your own operating system is quite possibly the hardest thing that a programmer can do. On the computer, it's unmanageable because of complexity, but you can still balance complexity with functionality on a graphing calculator. The TI-83 Plus uses a Z80 chip, and the 89/92+/Voyage 200 a 68000k, so assembly isn't too bad. Most 89/92+/Voyage 200 programs are written in C though.
I have to read my handwriting one word at a time, because it's impossible to decipher one letter at a time. The letters are there, but they only make sense as a word. Thus, when I'm writing something unfamiliar like a scientific name or such, I have to cut my speed to about a third to write it so I can read later.
I think the best handwriting is what works best for you. I'm fine with my "chicken scratch" (as everyone else calls it) for notes, because I'm writing twice as fast as most other people. If I have to turn in a paper, then I type it. No problems.
I don't really like the 'S' either. Those letters with too many turns of the pen on itself are slow.
Cursive: fast, but individualized. It's perfectly good for notes but not for assignments.
There's just one tiny drawback, I'm the only person who can read it. But that's a problem with your character recognition, not my writing :)
When I was younger I always wanted to write in cursive, I'm not sure why. I tried to make my own "cursive" in first grade. In third grade, we were finally taught how to write it. No one liked it (except me). The teacher made us write everything in cursive; she told us that we would be using it for the rest of our lives. Points were deducted if we didn't write in cursive.
Then came fourth grade. All of a sudden the teacher told us that either print or cursive was acceptable. All the other students went back to print, because they found cursive harder to write in. I found it more efficient, so I've stuck with it over the years. Now I'm the only student I've ever seen at my high school who writes in cursive all the time.
I think the reason cursive is dying is that the teachers don't enforce it. In third grade, it was an uphill struggle trying to get the students to learn, and then they completely stopped teaching it as well as encouraging the use. Communication is about efficiency too. If you can't read what I've written, or I can't write it in a reasonable amount of time, then we don't have good communication. My cursive writing is mostly illegible to anyone but me, because it's evolved for maximum speed. As a result, teachers often can't read my handwriting, and other students don't even remember enough cursive from 8 years ago to decipher it. If the school system would stick with teaching something, then maybe we'd have more widespread usage of cursive. It's really not that much worse or slower than typing, just a different form of expression.
I suppose it's too much to expect the teachers to focus on cursive though, since here in Arizona they have to prepare students for the wonderful AIMS test.
Maybe by sponsors they mean that the companies donated copies of their software for the testing labs? I don't think it would look good for the university to be using illegal copies of the software.
That can't happen. The United Nations signed a treaty in 1967, "Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies".
You can find a status here.
Anyway, Article I states that: "Outer space, including the moon and other celestial bodies, shall be free for exploration and use by all States without discrimination of any kind, on a basis of equality and in accordance with international law, and there shall be free access to all areas of celestial bodies."
Furthermore, Article II: "Outer space, including the moon and other celestial bodies, is not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means."
But the real kicker is Article IX: "If a State Party to the Treaty has reason to believe that an activity or experiment planned by it or its nationals in outer space, including the moon and other celestial bodies, would cause potentially harmful interference with activities of other States Parties in the peaceful exploration and use of outer space, including the moon and other celestial bodies, it shall undertake appropriate international consultations before proceeding with any such activity or experiment."
That basically says that you can't do anything that would harm other nations' rights to explore the moon. The question is whether stripping the natural resources counts as hindering/harming others.
For a scalability test, it sure fails the Slashdotting Test.
:)
It's about 9000 times slower right now
My body?
:-). Over the years, I've electrocuted myself various times (by camera, electric flyswatter, power lines, et cetera), exposed myself to chlorine gas (don't worry, I stopped coughing after 7 hours), and spilling 11 M HCl on my toes. Not to mention other stuff like the pogo stick accident...the body is the ultimate machine; it's like running a Sun server.
We know how much the nerd wants to experiment
This was posted before here.
When we can transform Mars into a haven for space nerds with a Genesis device!
Not only will we create a new planet, then we can take Venus and make it into Rura Penthe, thus finding a place for the RIAA executives to live.
Quite a few Sony Clies have 66 MHz 68k processors. The T665C, NR70, NR70V are the ones I know of. All three of those also have a polyphonic speaker, and a MP3 player (via a DSP on the circuit board). So there is capability for very nice sound via the headphone jack, and with MemorySticks you can have plenty of space for Vorbis files.
Slashdot has bowled three strikes today...err duplicates:
1. Duplicate Original
2. Duplicate Original
3. Duplicate Original Happy turkey slashdot!
The Slashdot editors clearly are in the Thanksgiving spirit: Two duplicate stories today so far; one more, and we have a turkey!
But the question is, will they have a perfect 300?
In 1822 George Pocock was riding around England in a carriage pulled by kites. He used a metal spike which he dug into the ground to stop.
:)
I think the same technique could apply here...just carry some sort of pick or metal tool that can drag into the ground, and then use that. Just make sure that you don't fall off the sled and then land on the point
What are "Exodus West" and "Exodus East"? Obviously they are your servers or server locations, but could someone please explain in more detail?
More than funny, that's true. I now notice the difference between "whom" and the often misused "who", as well as those bumbling idiots who use a plural pronoun with a singular antecedent! (Example: "Everyone open their book").
Semper ubi sub ubi!
That's why I said if someone didn't have the ability, then I understand suing. But let's be reasonable, unless you are a hermit, there is the ability to get a friend to read you the site. Or just call them! I definitely agree it should be accessible, but it's not cause to sue in my opinion. And about me, to make an example, if there's something I don't understand, I ask a person. Same concept.
No he's not being denied access. It's more as if you were allowed into Target, but were physically unable to spend money, or something. He can have someone else read him the page too, I'm sure there's someone around him who can see. When there is a blind person who really has no way to obtain the content, then it's worth suing.