Actually, Multics tried to prevent high-security users from communicating information to lower-security users on the same timesharing system; for example, a high-security user could not set the system date, since it could be read by a low-security user.
I think at one point Honeywell even did some stuff to obfuscate the paging patterns, since it was thought that high-security users could communicate information down by modulating their memory usage requirements.
Actually, ISPELL originally came from ITS, the PDP-10 timesharing system that Stallman and others first wrote EMACS for. ISPELL stood for "ITS Spell" (it was itself portedfrom some other PDP-10 TOPS-10 program, I think). I remember all this because I integrated it into EMACS (M-$). I worked with Stallman on this and other issues for a few years.
The Unix vesrion came about when Pace Willison took the algorithms and code, which were as open and freely available on the ARPANet, and ported them to PDP-11 Unix. Gil Pratt might have helped, but I can't remember. This version is the one that went to the FSF, as described in previous messages.
Or postal mail and fax-based art, where artists mail and fax in artworks on a specific day. We did one of these in 1993 (and that was by no means early) with a specific time-period instead of a day, all based on copy/fax art. See copy art.
Or do a search on google: fax art or
mail art
I have one of these fans. It was US$88 total, shipped to US and arrived quickly after shipping. I'm cooling an Athlon with it, and put it at its 12V setting (highest of 4 choices) and I can't hear it. The case I have is the Antec version of the case in the article -- it looks identical but may be missing some fine features (I don't recall any cork).
Your comments are not very insightful -- just ad hominem (well, ad something) attacks. Care to share the joke? The comments of the post you're replying to seem to imply that many are quite pleased with it for its ease of use for non-tech people, its flexibility, and its low price.
My company has a product that does that. It's very easy for anyone who can use a web browser to use out of the box (it's called "community maintained"), but it's also quite customizable and extensible, and is great for the size of workgroup that the original poster has.
It's not open source, but it is written in Python, and has an XML template language, and there's an extensive set of documentation and interfaces for hacking it yourself.
It supports the kind of meta-data and lightweight workflow you've discussed, is web-centered, but also has a Windows explorer file manager plug-in.
It's called DocuShare. See http://docushare.xerox.com (hosted in DocuShare itself, so you can try it out live).
It sounds like some of the concerns about greyed out vs. invisible options could be alleviated by a good search facility. But being presented with some of the options is an educational experience, and not being able to see "everything" fairly easily could detract from the experience.
I note that Microsoft in Office 2000 has taken to hiding menu options that a user doesn't use, and some people like it, but some don't. For me it's the same issue -- it's hard to discover things that you never see.
Jeff works on the DataGlyph technology. I work on applications of it. See http://www.xerox.com/flowport for my application, which lets you put a sheet with DataGlyphs on your document, drop it in a copier, and get out a paper icon for the document (stored on a WebDAV or other network server). You put the paper icon back in, and press copy to get a copy, type an e-mail address to e-mail it, etc. It's like an electronic version of the paper document, but on paper. We call it a "Document Token". (There has been previous SlashDot discussion of Document Tokens and other applications of DataGlyphs, but I can't find it either).
We're also very interested in open standards, and participate in a variety of standards organizations on this and related technologys. For example I'm on the W3C XForms committee, designing the next generation of web forms, and paper is one of the new "devices" that is being targeted (along with voice, pdas, phones, etc.). Check it out and send your comments to the www-forms mailing list! As we said when XForms was launched:
For the Web to become a truly ubiquitous computing interface, it must move beyond the desktop. XForms and other W3C open standards will make it easy to
create and to use rich, interactive Web documents and services on a wide variety of user interfaces -- graphical, voice, and paper.
This security issue is unrelated to Airwave
on
New flaws in 802.11B
·
· Score: 1
Airwave uses unencrypted traffic, not WEP. As a previous poster noted, WEP requires a shared secret among users. There would not be much point to sharing a secret with your fellow coffee drinkers if your purpose is to keep them from reading your Business Plan.
As you point in in #1, it's not secure once it leaves the cafe anyway. If you are concened, use ssh or https or encryption in email for your business plan anyway.
And get a pair of those glasses with mirrors on the front so you can make sure nobody is looking at your laptop screen either!
And to bring everything but the CueCat into this, I got mail from Airwave saying that their DSL in the local cafe here used NorthPoint.
It appears that there is an issue here, but it's an 802.11 issue, not an IP issue as I'd assumed the poster was implying. See here for a subsequent SlashDot article by someone else talking about the need for less than 20usec latency in 802.11, which would be in the 1-2 mile range.
Actually, I have a Lucent 802.11b Wavelan, an Apple Airport, and a Siemens 2.4GHz phone and I've noticed no problems. I tried to cause problems but I couldn't.
In fact, I've had more problems with the phone itself -- it dials too fast for my phone company and I have to put in a 1010xxx prefix in order to get it to work and not give a fast busy.
Emergency Hearing
The California Public Utilities Commission will hold an emergency hearing tomorrow, Friday, March 30, 2001, at 10 a.m. to consider issuing a temporary restraining order in the case of XO California, Inc. vs. Northpoint Communications, Inc. The hearing will be held in Hearing Room B at the Commission's offices located at 505 Van Ness Avenue. At issue is the discontinuation of DSL service by Northpoint Communications.
>the biggest problem with sending anything over long distances is packet latency.
The question says 10Km. That's not a long distance. Speed-of-light delay at 10Km is about 30 microseconds. It's about that far from my house to Yahoo and I can get there and back in 8ms. At least I can today; we'll see what happens when they throw the big switch at Northpoint on Monday.
3000 or so miles across the country is a long distance. That's about 20 milliseconds absolute mininum speed-of-light delay. In reality, I see about 70-80ms delay in between two IP hops cross-country (San Francisco to Reston, for example).
Yes, the IPv4 shortage is why the originator of this thread points to IPv6. Your comments about the ARIN rules apply to IPv4. As a manufacturer of small networked devices I see an advantage to having a unique address space, rather than multiple repeated 10.x.x.x address spaces across homes.
I think L. Peter Deutsch was the first to have dual-license -- GPL version of Ghostscript and then the Aladdin for-pay commercial version where you get to keep your proprietary changes. It's pretty much passed the scruitiny of time -- Ghostscript is distributed as GPL widely, and Ghostscript is the basis of a for-profit company (not called Aladdin anymore) that sells it. LPD even retired recently. (For those of you who don't know, Deutsch is a real pioneer in computer science, having invented fundamental ideas in garbage collection, programming languages, etc.)
When I was at Walgreen's drug store last week I saw Ink Jet paper that does this. You print on it and cut it out and put it in the oven and it shrinks.
You might be interested in Dave Raggett's HTML Tidy, which is available from the W3C web site. It finds, reports, and fixes common HTML errors and produces valid HTML 3.2 or valid XHTML 1.0. It is available in C and Java versions.
There is a config-file setting that tells it to clean up Microsoft Word HTML output as well.
This LED would appreciate being fed 3.4 to 3.8 volts DC at 20 milliamps, and would thank you
to the stars if you did not hook it up backwards. Like most LEDs using this new technology, connecting them
backwards is very often fatal to them.
I use Megapath and they're excellent, but since they've apparently stopped taking residential accounts I recommend people investigate SpeakEasy as well.
Actually, one of Xerox's products aims to make paper a first-class citizen on the network. Drop your document into a networked copier, scanner, or other device supporting the open standard IFAX (essentially SMTP+MIME+TIFF), and it stores it on the net somewhere and prints out a Document Token -- a one-page paper icon for the document. It's a physical piece of paper that you can get warm fuzzies about holding in your hand, copy as is, give to people, mail, etc. But drop it back into any networked device again and it retrieves the original paper document, formats it and prints it (or emails it or OCR's it or anything you could have done to the original stack of paper it represents).
In short, it makes paper electronic and vice versa.
Slashdot Mirror
Actually, Multics tried to prevent high-security users from communicating information to lower-security users on the same timesharing system; for example, a high-security user could not set the system date, since it could be read by a low-security user.
I think at one point Honeywell even did some stuff to obfuscate the paging patterns, since it was thought that high-security users could communicate information down by modulating their memory usage requirements.
Actually, ISPELL originally came from ITS, the PDP-10 timesharing system that Stallman and others first wrote EMACS for. ISPELL stood for "ITS Spell" (it was itself portedfrom some other PDP-10 TOPS-10 program, I think). I remember all this because I integrated it into EMACS (M-$). I worked with Stallman on this and other issues for a few years.
The Unix vesrion came about when Pace Willison took the algorithms and code, which were as open and freely available on the ARPANet, and ported them to PDP-11 Unix. Gil Pratt might have helped, but I can't remember. This version is the one that went to the FSF, as described in previous messages.
Try the net4501, $250 or so, three ethernet ports, compact flash, etc.
http://www.soekris.com/net4501.htmThe Curta is a hand-held mechanical calculator made in Liechtenstein between the end of WWII and the 1970's. It's really cool. See http://curta.org
Or postal mail and fax-based art, where artists mail and fax in artworks on a specific day. We did one of these in 1993 (and that was by no means early) with a specific time-period instead of a day, all based on copy/fax art. See copy art. Or do a search on google: fax art or mail art
I have one of these fans. It was US$88 total, shipped to US and arrived quickly after shipping. I'm cooling an Athlon with it, and put it at its 12V setting (highest of 4 choices) and I can't hear it. The case I have is the Antec version of the case in the article -- it looks identical but may be missing some fine features (I don't recall any cork).
Actually it appears Silly Putty no longer works on the funnies anyway, due to changes in ink...
Your comments are not very insightful -- just ad hominem (well, ad something) attacks. Care to share the joke? The comments of the post you're replying to seem to imply that many are quite pleased with it for its ease of use for non-tech people, its flexibility, and its low price.
My company has a product that does that. It's very easy for anyone who can use a web browser to use out of the box (it's called "community maintained"), but it's also quite customizable and extensible, and is great for the size of workgroup that the original poster has.
It's not open source, but it is written in Python, and has an XML template language, and there's an extensive set of documentation and interfaces for hacking it yourself.
It supports the kind of meta-data and lightweight workflow you've discussed, is web-centered, but also has a Windows explorer file manager plug-in.
It's called DocuShare. See http://docushare.xerox.com (hosted in DocuShare itself, so you can try it out live).
The Gnome default window manager, sawfish, uses Lisp as its extension language, via the librep package.
On my RedHat system, the lisp code is inThere's over 8000 lines of Lisp in the default implementation, plus another 2500 or so in the themes. People customize it heavily as well.
A visually impaired colleage, for example, can now use X Windows because he customizes it with Lisp to have audio cues.
It sounds like some of the concerns about greyed out vs. invisible options could be alleviated by a good search facility. But being presented with some of the options is an educational experience, and not being able to see "everything" fairly easily could detract from the experience.
I note that Microsoft in Office 2000 has taken to hiding menu options that a user doesn't use, and some people like it, but some don't. For me it's the same issue -- it's hard to discover things that you never see.
Jeff works on the DataGlyph technology. I work on applications of it. See http://www.xerox.com/flowport for my application, which lets you put a sheet with DataGlyphs on your document, drop it in a copier, and get out a paper icon for the document (stored on a WebDAV or other network server). You put the paper icon back in, and press copy to get a copy, type an e-mail address to e-mail it, etc. It's like an electronic version of the paper document, but on paper. We call it a "Document Token". (There has been previous SlashDot discussion of Document Tokens and other applications of DataGlyphs, but I can't find it either).
We're also very interested in open standards, and participate in a variety of standards organizations on this and related technologys. For example I'm on the W3C XForms committee, designing the next generation of web forms, and paper is one of the new "devices" that is being targeted (along with voice, pdas, phones, etc.). Check it out and send your comments to the www-forms mailing list! As we said when XForms was launched:
He probably means plain 802.11 without the b.
Airwave uses unencrypted traffic, not WEP. As a previous poster noted, WEP requires a shared secret among users. There would not be much point to sharing a secret with your fellow coffee drinkers if your purpose is to keep them from reading your Business Plan.
As you point in in #1, it's not secure once it leaves the cafe anyway. If you are concened, use ssh or https or encryption in email for your business plan anyway.
And get a pair of those glasses with mirrors on the front so you can make sure nobody is looking at your laptop screen either!
And to bring everything but the CueCat into this, I got mail from Airwave saying that their DSL in the local cafe here used NorthPoint.
It appears that there is an issue here, but it's an 802.11 issue, not an IP issue as I'd assumed the poster was implying. See here for a subsequent SlashDot article by someone else talking about the need for less than 20usec latency in 802.11, which would be in the 1-2 mile range.
Actually, I have a Lucent 802.11b Wavelan, an Apple Airport, and a Siemens 2.4GHz phone and I've noticed no problems. I tried to cause problems but I couldn't.
In fact, I've had more problems with the phone itself -- it dials too fast for my phone company and I have to put in a 1010xxx prefix in order to get it to work and not give a fast busy.
>the biggest problem with sending anything over long distances is packet latency.
The question says 10Km. That's not a long distance. Speed-of-light delay at 10Km is about 30 microseconds. It's about that far from my house to Yahoo and I can get there and back in 8ms. At least I can today; we'll see what happens when they throw the big switch at Northpoint on Monday.
3000 or so miles across the country is a long distance. That's about 20 milliseconds absolute mininum speed-of-light delay. In reality, I see about 70-80ms delay in between two IP hops cross-country (San Francisco to Reston, for example).
Yes, the IPv4 shortage is why the originator of this thread points to IPv6. Your comments about the ARIN rules apply to IPv4. As a manufacturer of small networked devices I see an advantage to having a unique address space, rather than multiple repeated 10.x.x.x address spaces across homes.
I think L. Peter Deutsch was the first to have dual-license -- GPL version of Ghostscript and then the Aladdin for-pay commercial version where you get to keep your proprietary changes. It's pretty much passed the scruitiny of time -- Ghostscript is distributed as GPL widely, and Ghostscript is the basis of a for-profit company (not called Aladdin anymore) that sells it. LPD even retired recently. (For those of you who don't know, Deutsch is a real pioneer in computer science, having invented fundamental ideas in garbage collection, programming languages, etc.)
When I was at Walgreen's drug store last week I saw Ink Jet paper that does this. You print on it and cut it out and put it in the oven and it shrinks.
You might be interested in Dave Raggett's HTML Tidy, which is available from the W3C web site. It finds, reports, and fixes common HTML errors and produces valid HTML 3.2 or valid XHTML 1.0. It is available in C and Java versions.
There is a config-file setting that tells it to clean up Microsoft Word HTML output as well.
Blue leds are generally extremely sensitive to being put in backwards. They are even sensitive to being looked at backwards.
See the blue led articles at the http://ledmuseum.home.att.net. This quote from http://ledmuseum.home.att.net/ledblu2.htm is about the Radio Shack blue LED:
Slashdot covered this site before.
I use Megapath and they're excellent, but since they've apparently stopped taking residential accounts I recommend people investigate SpeakEasy as well.
Today I saw that Speakeasy has a GIF ad that says "Speakeasy -- We Pay our Covad Bills": http://www.speakeasy.net/images/dsl/silver-speak-h eader.gif
Actually, one of Xerox's products aims to make paper a first-class citizen on the network. Drop your document into a networked copier, scanner, or other device supporting the open standard IFAX (essentially SMTP+MIME+TIFF), and it stores it on the net somewhere and prints out a Document Token -- a one-page paper icon for the document. It's a physical piece of paper that you can get warm fuzzies about holding in your hand, copy as is, give to people, mail, etc. But drop it back into any networked device again and it retrieves the original paper document, formats it and prints it (or emails it or OCR's it or anything you could have done to the original stack of paper it represents).
In short, it makes paper electronic and vice versa.
Disclaimer: I worked on the product, FlowPort