Yeah, he was at Apachecon in London, he had to leave BSDcon early to get there;-) As one of the active contributers on the Darwin project I have to say it is ashame to see him leave Apple, but if he is doing something he wants to be doing then I am happy for him.
Odd, I have similiar story. I am a CS/Math senior at RPI. I choose to do that because I wanted a CS degree. Before I went to college I had exposure to both (between 7th and 8th grades I learned about formal languages, automata theory, and wrote a simple langauge interpretter , between 9th and 10th I learned about combinatiopnal and sequential logic, designed and built a 4 bit RISC chip).
I really do enjoy the logic of hardware, but I don't care for debugging errors due to signal interference, etc. So occasionally I take some of the engineering courses (most people in my LITEC (Labratory Introduction To Embedded Controllers) class did not understand why I was taking it when I did not have to. But it was fun).
In the end do what you feel comfortable with. I just can't understand people claiming the enjoy coding but hate math. The two are so fundamentally intertwined once you get past introductory level material, and I am not talking about Theory of Computation. If you really feel that you want to write more then sheel scripts for a living, CS is probably better the CIS.
There is a really simple reason for this. You are already getting all the analogs on your coax anyway, so that you can use analog cable where you do not have a digital cable box. Why duplicate them in digital format and waste 100 channels worth of digital content space.
Wrong. DVI is a standard. It defines 3 port connectos, one supporting Digital via TMDS only, one supporting analong only, one supporting either. DVI is available on cards from ATI, and Matrox, as well as some OEM bundles from other manufacturers.
The apple port looks like a bybride DVI port with 4 extra pins around the +. As far as a can tell the computers can be used with standard parts with no adapters, though I think the monitors will require adapters for use with other computers...
Trust me, I dislike IDE as much as the next man, but in this case it is not the bottleneck
The current IDE-Firewire bridges are. They are all buggy, and can only run in PIO Mode 4, which limits the drives to around 16 megs a second. I imagine that next generation bridges should fix that.
While the latest greatest drives are currently SCSI, from an economic standpoint an IDE drive with an IDE-Firewire bridge is about as good as you will currently do in terms of features/cost for external an drive.
As for native firewire drives, there none currently. I believe quantum has stated they will be making some available in the future, and since MacWorld seems like a logical place for firewire announcements, this statemnet might be wrong in a few hours.
Hope that is helpful.
Louis
Re:Slashdot really posted this inaccurate crap.
on
Pirate DNS?
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· Score: 1
No, I don't think you know what your talking about it. Usenet is one of the absolute worst examples you could use. It has a huge amount of data replication. It uses a huge amount of bandwidth. It requires an immense amount of disk space, and it wears out disks like almost nothing else (modern disks are better then those of a decade ago). Propogating authenticated changes is almost impossible (hence no gloabl remove post command), and consistancy is horrid (look at a thread with 100 posts, many ISPs will be missing some).
Another factor is that a large amount of transfer time is in the protocol negotiation and handshake, which you need to do thousands of times, instead of once. That definately adds time to everything. It would almost certainly be slower.
Well, if you have a linux box and recompile your kernel with MacOS partition support (you probably do not need that, since ghost seems to manage to read the partition map) and hfs support you should be able to read it. As for manipulating the partition table, there is a utility called pdisk which is basicly fdisk for MacOS style partition maps. I do find it kind of surprisingc that they use an hfs partition. The reason that seems feasible is that they bought third party boot firmware that support booting from an hfs partition, but not ext2. Lots of people seem to buy their firwmare from firmworks in the PPC world, so it would not be the strangest thing.
I just reconfirmed through WRHambrecht (though they are not a primary underwriter, they are associated with Hambrecht & Quist, and thus have some shares to allocate amongst their clients). I placed an indication of interest with them for Cobalt, but didn't get any. I would really like to get some shares of VA, but I am still pretty ecstatic about Andover.Net's performance, so if not oh well.
There are a couple of good reasons for microkernels. SMP support becomes a lot easier, as does realtime support. In order to get good RT support you have to make sure that either the entire kernel can be prempted, or that whatever sections can't be prempted are really short. If you have a microkernel you can ensure this relatively easily, and since the rest of the OSes functionality is implemented as servers above the microkernel, they can all be prempted. Don't get me wrong, I run linux, but there are some features it does not have and likely never will. For instance, try to burn a CD in the background when you have something suddenly utilize a lot of the processor or the bus. Chances are your CD is ruined. If you had an OS based on a real time kernel (and the CD-R software utilized that functionality), and an isochronos bus (USB, Firewire), you could safely burn the CD in the background, and do whatever you wanted.
How different do PCMCIA cards look without extenral wiring or attachments. My ethernet card and my modem are identical, except for the fact that the slot that the wire goes into is to millimeters thinner on one, and that they have different labels, but I am quite sure they are not the same...
Since apple uses a proprietary attena (sp?) built into the casing, there is nothing particularly interesting (physically) about the card. I'm not saying that they are not the same card, they may well be, but I just think that their physical appearance is not enough to base such a guess on.
Slashdot Mirror
Yeah, he was at Apachecon in London, he had to leave BSDcon early to get there ;-) As one of the active contributers on the Darwin project I have to say it is ashame to see him leave Apple, but if he is doing something he wants to be doing then I am happy for him.
Louis
I really do enjoy the logic of hardware, but I don't care for debugging errors due to signal interference, etc. So occasionally I take some of the engineering courses (most people in my LITEC (Labratory Introduction To Embedded Controllers) class did not understand why I was taking it when I did not have to. But it was fun).
In the end do what you feel comfortable with. I just can't understand people claiming the enjoy coding but hate math. The two are so fundamentally intertwined once you get past introductory level material, and I am not talking about Theory of Computation. If you really feel that you want to write more then sheel scripts for a living, CS is probably better the CIS.
Louis
There is a really simple reason for this. You are already getting all the analogs on your coax anyway, so that you can use analog cable where you do not have a digital cable box. Why duplicate them in digital format and waste 100 channels worth of digital content space.
Wrong. DVI is a standard. It defines 3 port connectos, one supporting Digital via TMDS only, one supporting analong only, one supporting either. DVI is available on cards from ATI, and Matrox, as well as some OEM bundles from other manufacturers.
The apple port looks like a bybride DVI port with 4 extra pins around the +. As far as a can tell the computers can be used with standard parts with no adapters, though I think the monitors will require adapters for use with other computers...
Trust me, I dislike IDE as much as the next man, but in this case it is not the bottleneck
The current IDE-Firewire bridges are. They are all buggy, and can only run in PIO Mode 4, which limits the drives to around 16 megs a second. I imagine that next generation bridges should fix that.
While the latest greatest drives are currently SCSI, from an economic standpoint an IDE drive with an IDE-Firewire bridge is about as good as you will currently do in terms of features/cost for external an drive.
As for native firewire drives, there none currently. I believe quantum has stated they will be making some available in the future, and since MacWorld seems like a logical place for firewire announcements, this statemnet might be wrong in a few hours.
Hope that is helpful.
Louis
No, I don't think you know what your talking about it. Usenet is one of the absolute worst examples you could use. It has a huge amount of data replication. It uses a huge amount of bandwidth. It requires an immense amount of disk space, and it wears out disks like almost nothing else (modern disks are better then those of a decade ago). Propogating authenticated changes is almost impossible (hence no gloabl remove post command), and consistancy is horrid (look at a thread with 100 posts, many ISPs will be missing some).
Another factor is that a large amount of transfer time is in the protocol negotiation and handshake, which you need to do thousands of times, instead of once. That definately adds time to everything. It would almost certainly be slower.
Well, if you have a linux box and recompile your kernel with MacOS partition support (you probably do not need that, since ghost seems to manage to read the partition map) and hfs support you should be able to read it. As for manipulating the partition table, there is a utility called pdisk which is basicly fdisk for MacOS style partition maps. I do find it kind of surprisingc that they use an hfs partition. The reason that seems feasible is that they bought third party boot firmware that support booting from an hfs partition, but not ext2. Lots of people seem to buy their firwmare from firmworks in the PPC world, so it would not be the strangest thing.
blaster
I just reconfirmed through WRHambrecht (though they are not a primary underwriter, they are associated with Hambrecht & Quist, and thus have some shares to allocate amongst their clients). I placed an indication of interest with them for Cobalt, but didn't get any. I would really like to get some shares of VA, but I am still pretty ecstatic about Andover.Net's performance, so if not oh well.
There are a couple of good reasons for microkernels. SMP support becomes a lot easier, as does realtime support. In order to get good RT support you have to make sure that either the entire kernel can be prempted, or that whatever sections can't be prempted are really short. If you have a microkernel you can ensure this relatively easily, and since the rest of the OSes functionality is implemented as servers above the microkernel, they can all be prempted. Don't get me wrong, I run linux, but there are some features it does not have and likely never will. For instance, try to burn a CD in the background when you have something suddenly utilize a lot of the processor or the bus. Chances are your CD is ruined. If you had an OS based on a real time kernel (and the CD-R software utilized that functionality), and an isochronos bus (USB, Firewire), you could safely burn the CD in the background, and do whatever you wanted.
How different do PCMCIA cards look without extenral wiring or attachments. My ethernet card and my modem are identical, except for the fact that the slot that the wire goes into is to millimeters thinner on one, and that they have different labels, but I am quite sure they are not the same...
Since apple uses a proprietary attena (sp?) built into the casing, there is nothing particularly interesting (physically) about the card. I'm not saying that they are not the same card, they may well be, but I just think that their physical appearance is not enough to base such a guess on.