Not a flame, it's just that I don't think that you realize the enormity of the project.
Bad ideas for senior projects...
I remember when we were picking senior projects, we had to use a Z80 8-bit CPU to drive outputs based input in a useful manner. Well, one classmate wanted to use a VGA controller as output. Whoa. We had wired up a simple memory mapped CGA chip for earlier projects, but he was picking a design goal he had no experience with. I doubt he knew VGA was more than just simple memory mapping to draw stuff. This was to be done in one semester. From what I hear, he was still making excuses after a year trying to get it done. Quite sad.
Then there was the guy who committed to a floppy disk copier. He got smart and scaled down his project to something that would "test" the floppies by clicking down the tracks and checking for activity on the data. He passed.
Rule of projects: Keep It Short and Simple.
My project was a bit easier building a digital sampling oscilloscope, because I was able to cut and paste previous code from working earlier projects.
I am a hardware guy and happy it was posted. There are many possibilities with a programmable device that hangs off the computer.
I have always been interested in DSPs as they can do some serious number crunching. The evaluation board they have has space set aside for prototyping and even more fun.
This would be fun for the box that has no sound card. Perfect for the workplace.:)
Its starting as I take note of the fud. I like the ones that are referenced from/. due to the rich discussion. I'm trying to seperate the fact from fiction and humor. It will be good when there are names and dates backing the quotes.
After seeing this, I am starting a list of these one liners of fud complete with referencing the person who spewed out nonsense. I found that my quote archive is being filled with these humorous statements.
Looks like I will quite busy as the fud seems to fly faster these days. Searching microsoft's site turns up some gems.
I would be interested what it looks like in real life.
I once saw a demo of a 3D no-glasses technique that gave the illusion of depth by causing the background to jitter. Imagine a shot at the beach where the close object is close and the background perspective is horizontally angled in a fluttered fashion. My mind recognized there was something to the depth, but I would imagine a full length film would be a headache. This was a demo I saw back in the 70's, so if it was patented, its free now! I'm not sure how to easily create the effect with two cameras and they must have used some heavy film tricks to get that effect.
Question Regarding Upgrade
on
Red Hat 6.0
·
· Score: 1
There are a few ways to upgrade that I use:
Normal upgrade by booting the cd,
Try out a fresh install on a spare hard drive,
or not recommended unless you like to hack:
the quick brute force method even worked from the 4.x to 5.x distros was go to the.../RPMS directory of the install cd and do a brute force upgrade rpm --nodeps --force *.rpm and repeat if there were errors.
I always copy my home directory, etc, and/usr/local to a safe place so I have a fallback if I get careless. This can be done by:
Redhat 6.0 - Why not include SSH 1.2.26?
on
Red Hat 6.0
·
· Score: 1
Why not distribute ssh freely? The License. From the/usr/doc/ssh-xxx/COPYING:
For commercial licensing please contact Data Fellows, Ltd. Data Fellows has exclusive licensing rights for the technology for commercial purposes. Data Fellows offers commercial versions of SSH with maintenance agreements in addition to various licensing options for the technology itself. You can contact Data Fellows at , http://www.datafellows.com/, tel Int.+358-9-478 444 or fax Int.+358-9-4784 4599.
Who cares about RedHat?
on
Red Hat 6.0
·
· Score: 1
Oh, your really missing out.
Here is a picture of the redhat sticker perfect for slapping on your box.
Not to mention the cool geek software t-shirts and hats they have. Let me tell you, red gets attention.
Reason is Linux CDROM drvrs unforgiving of errors
on
Red Hat 6.0
·
· Score: 1
When I installed from a cdrom full of errors, it took a very long time. It would keep retrying the same sector and reseting the controller. If I remember, it was several minutes for each bad sector. You can watch any errors while it copies by tailing forever the message log in the background while you copy:
tail -f/var/log/messages &
and see the bad sectors as the drive keeps trying. Sometimes all that effort manages to get data out of a bad sector; however, if I knew a way to turn off all those retries, I would turn it off. Its not worth the time to make a 15 minute install a whole day.
Who cares about RedHat?
on
Red Hat 6.0
·
· Score: 1
Why do I buy it from the box? For the cool stickers. As an added bonus, it comes with a manual and even the source code CD that I might not download.
Besides, I have been in the workforce for several years, so I do not mind paying for good things.
Can I do DOS Xcopy of redhat tree to HD &
on
Red Hat 6.0
·
· Score: 1
Even better:
If you can, boot from the CD or a floppy to get a shell. Usually, you can hit F2 for the shell. mknod the hard drive device and mount your hard drive and cp from there.
Impressive, but I would not trust my ass to tape for 30 years.
Yes, the math will prove 100% recovery if there is a 5% data loss in that sector . This is good for signal loss due to degradation, but what if there was some contamination in the room. Oily dust, moisture, prying fingers, perhaps? If there is a 5% data loss that is not uniformly distributed across the medium, the recovery will not hash out.
If it does break within the warranty, I don't think a blank replacement tape would make me happy. I would not trust my tape for over one year.
I work with plastic extrusion and might be aware of a few weaknesses of plastics. Plastics, especially nylon, absorb water quickly. Water can be our worst enemy if the stuff is not dehydrated before extrusion. After the product is made, water can degrade the plastic's strength over time. Weather resistant plastics are colored black to absorb sunlight. Fire and heat resistant plastics, are fortified with lead based compounds.
Most of my old CDRs at home that are going bad due to the surface getting very weak and cracking. When they were new, the surface was much stronger. Now I only touch the sides and never the top surface.
Geeks smoke? I was surprised at the October ALS when we gathered at a nearby bar and grill for some good brew. Upstairs was the bar. That was the first bar I have ever been to where no smoke was in the air. That whole night, I counted two smokers. The bar was filled with people who had palm pilots and unusual electronic toys. One of the girls from Linuxworld sat next to me. I just wish there was a place like that I could go every weekend.
That was my only experience at a bar where people didn't light up. The staff may have thought something was odd.
Most professionals that I know of have too many resposibilities to be experimenting. Many like me have random drug tests, and can not afford to screw up. There is simply just no time to "explore your mind." I could not function in an enhanced state, not to mention my health being compromised.
If teenagers were to be drug checked, watch out...
Any group with enough rabid fervor (*cough*stallman*cough*) will skew test results of their product...
You have a point. Compare that free software does this by cranking up the compilers and introducing a new version of the code versus an evil software company might do this first through its marketing department and many arms of its PR firms.
When the code is freely distributed and not horded, someone is bound to find a better way for immediate release. A bloated and slow moving dinasour might find it just easier to step on the competition rather than try to improve upon it.
Consider me an opionated SOB, as it seems to me that they need some quick dirty way to discredit any criticism of that survey. This article is written as a tool to dismiss Linux advocates. Its just another step in the FUD war as they march the beat of biased benchmarks.
The author of the article starts out painting himself as diverse and unbiased. Then he turns on his fudblaster. This is what we will see while the 2000 series of products is being hyped from its vaporware stage to it being shipped out the door.
Although I prefer to have a totally free package, they are nice by throwing in a few word processors. Sounds like a Linux package for mom to get started with.
There were just a few details on the requirements for installing that caught my eye: minimum hard drive space was 12MB was listed on the first page (nice!), but on the hardware page it listed 160MB to 1.2 GB. I don't think the 12MB is the full graphical install they were talking about.
I get paid twice the average family income doing manufacturing tech work and programming is a hobby at home. Should it be illegal for me to program for the fun of it? I would starve if I couldn't program.
There is a small problem with plugging live devices while the power is hot and its not designed for it. The problem is SCR lockup and it is a condition inside integrated circuits where an input is biased beyond the supply rails that can cause the semiconductor junctions to mimic a triggered SCR. The result would lock down the supply rails and heat the IC, possibly to destruction. I suppose most chips nowdays have this worked out, but it used to be something to think about.
Bad solder joints account for about 50% of television and monitor repairs. At least it was that way when I used to repair them a few years back. It was the heat damage from the high voltage section and other hot spots that caused improperly soldered areas have hairline cracks. The cracks got hotter and the connection would break. Hitting a monitor would bring it back to life in this case. The solution to this would be simply to resolder. This kind of repair is an easy $100-$400, depending on the value. I know a tech that charged $450 for a projection unit, because he "repaired the power supply" this way.
Also related to heat damage are the electrolytic capacitors. They are easily guessed by the toasted and 0darkened areas of printed circuit boards. The oil in them boils away and they go out of tolerance. Bad capacitors cause the picture to get scrunched or out of sync. In the worse case, the sync gets so bad, the flyback circuit burns up including the transformer. While the transformer itself costs about $20-$50, the repair is worth $150 if you like to make money...
Most people now days will junk the bad monitor and try to buy something that is properly designed. It seems like engineers of yesterday built the chassis with absolute maximum ratings in mind to cut costs.
Most monitors will have an operating life. Increase this by keeping them cool. Allow them to breathe. Don't place stuff on top. A small fan could be very promising.
Next time you have a pizza party and use printer paper for everyone to place the pizza (as a napkin), be sure to recycle the paper back into the printer. Tomato stains really liven up stock white paper. It will be sure to rival that expensive colorful graphic paper. Don't be shy with salt and pepper as they might contribute to the background. Coffee stains are an added bonus.
When you fire up the printer for the next job, people will swear its luchtime when the onions hit the fuser sizzling.
Paper jams? No, that means you are not doing it right. Try, try again. Sometimes you have to get the right consistency on the paper ingredients. Be sure to print out a few memos. Make a copy for everyone.
About bodily fluids in a computer... I had a cat that got a little sick on top of the monitor.
Good thing it was shut off while I was at work. When I was home, I turned it on, the screen had a slight flicker. I smelled something burning, but could not determine its source. It got real bad. That is when I discovered the smoke. When the cover was off, I had to scrape the shit off the high voltage section. It looked like it was close to catching fire...
A friend found a great way to destroy a 27 inch TV. Water a plant on the top when the tube is nice and hot. The neck will crack. That TV was a good source of parts for many projects.
Slashdot Mirror
Not a flame, it's just that I don't think that you realize the enormity of the project.
Bad ideas for senior projects...
I remember when we were picking senior projects, we had to use a Z80 8-bit CPU to drive outputs based input in a useful manner. Well, one classmate wanted to use a VGA controller as output. Whoa. We had wired up a simple memory mapped CGA chip for earlier projects, but he was picking a design goal he had no experience with. I doubt he knew VGA was more than just simple memory mapping to draw stuff. This was to be done in one semester. From what I hear, he was still making excuses after a year trying to get it done. Quite sad.
Then there was the guy who committed to a floppy disk copier. He got smart and scaled down his project to something that would "test" the floppies by clicking down the tracks and checking for activity on the data. He passed.
Rule of projects: Keep It Short and Simple.
My project was a bit easier building a digital sampling oscilloscope, because I was able to cut and paste previous code from working earlier projects.
I am a hardware guy and happy it was posted. There are many possibilities with a programmable device that hangs off the computer.
:)
I have always been interested in DSPs as they can do some serious number crunching. The evaluation board they have has space set aside for prototyping and even more fun.
This would be fun for the box that has no sound card. Perfect for the workplace.
Its starting as I take note of the fud. I like the ones that are referenced from /. due to the rich discussion. I'm trying to seperate the fact from fiction and humor. It will be good when there are names and dates backing the quotes.
After seeing this, I am starting a list of these one liners of fud complete with referencing the person who spewed out nonsense. I found that my quote archive is being filled with these humorous statements.
Looks like I will quite busy as the fud seems to fly faster these days. Searching microsoft's site turns up some gems.
I would be interested what it looks like in real life.
I once saw a demo of a 3D no-glasses technique that gave the illusion of depth by causing the background to jitter. Imagine a shot at the beach where the close object is close and the background perspective is horizontally angled in a fluttered fashion. My mind recognized there was something to the depth, but I would imagine a full length film would be a headache. This was a demo I saw back in the 70's, so if it was patented, its free now! I'm not sure how to easily create the effect with two cameras and they must have used some heavy film tricks to get that effect.
There are a few ways to upgrade that I use:
.../RPMS directory of the install cd and do a brute force upgrade rpm --nodeps --force *.rpm and repeat if there were errors.
/usr/local to a safe place so I have a fallback if I get careless. This can be done by:
/home /backup /etc /backup /usr/local /backup
Normal upgrade by booting the cd,
Try out a fresh install on a spare hard drive,
or not recommended unless you like to hack:
the quick brute force method even worked from the 4.x to 5.x distros was go to the
I always copy my home directory, etc, and
cp -ar
cp -ar
cp -ar
Why not distribute ssh freely? The License. From the /usr/doc/ssh-xxx/COPYING:
For commercial licensing please contact Data Fellows, Ltd. Data Fellows has exclusive licensing rights for the technology for
commercial purposes. Data Fellows offers commercial versions of SSH with maintenance agreements in addition to various licensing options for the technology itself. You can contact Data Fellows at
,
http://www.datafellows.com/, tel Int.+358-9-478 444 or fax Int.+358-9-4784 4599.
Oh, your really missing out.
Here is a picture of the redhat sticker perfect for slapping on your box.
And here is a coveted redhat bumper sticker that my car sports.
Not to mention the cool geek software t-shirts and hats they have. Let me tell you, red gets attention.
When I installed from a cdrom full of errors, it took a very long time. It would keep retrying the same sector and reseting the controller. If I remember, it was several minutes for each bad sector. You can watch any errors while it copies by tailing forever the message log in the background while you copy:
/var/log/messages &
tail -f
and see the bad sectors as the drive keeps trying. Sometimes all that effort manages to get data out of a bad sector; however, if I knew a way to turn off all those retries, I would turn it off. Its not worth the time to make a 15 minute install a whole day.
Why do I buy it from the box? For the cool stickers. As an added bonus, it comes with a manual and even the source code CD that I might not download.
Besides, I have been in the workforce for several years, so I do not mind paying for good things.
Even better:
If you can, boot from the CD or a floppy to get a shell. Usually, you can hit F2 for the shell. mknod the hard drive device and mount your hard drive and cp from there.
The butt hinge? From one of my home pages:
Microsoft has recently innovated and patented the door hinge as part of its runnaway embrace and extend strategy. This is no joke! One step closer towards Gates' promised and detailed World Domination.
But they do make decent mice. Software, on the other hand...
Impressive, but I would not trust my ass to tape for 30 years.
Yes, the math will prove 100% recovery if there is a 5% data loss in that sector . This is good for signal loss due to degradation, but what if there was some contamination in the room. Oily dust, moisture, prying fingers, perhaps? If there is a 5% data loss that is not uniformly distributed across the medium, the recovery will not hash out.
If it does break within the warranty, I don't think a blank replacement tape would make me happy. I would not trust my tape for over one year.
Water moisture...
I work with plastic extrusion and might be aware of a few weaknesses of plastics. Plastics, especially nylon, absorb water quickly. Water can be our worst enemy if the stuff is not dehydrated before extrusion. After the product is made, water can degrade the plastic's strength over time. Weather resistant plastics are colored black to absorb sunlight. Fire and heat resistant plastics, are fortified with lead based compounds.
Most of my old CDRs at home that are going bad due to the surface getting very weak and cracking. When they were new, the surface was much stronger. Now I only touch the sides and never the top surface.
Geeks smoke? I was surprised at the October ALS when we gathered at a nearby bar and grill for some good brew. Upstairs was the bar. That was the first bar I have ever been to where no smoke was in the air. That whole night, I counted two smokers. The bar was filled with people who had palm pilots and unusual electronic toys. One of the girls from Linuxworld sat next to me. I just wish there was a place like that I could go every weekend.
That was my only experience at a bar where people didn't light up. The staff may have thought something was odd.
Most professionals that I know of have too many resposibilities to be experimenting. Many like me have random drug tests, and can not afford to screw up. There is simply just no time to "explore your mind." I could not function in an enhanced state, not to mention my health being compromised.
If teenagers were to be drug checked, watch out...
Man, those Beowulf clusters are FAST. Just think what you could do with a Beowulf cluster of them...
All I have is just a 464 Celeron A.
*sniff*
I'm just a node.
Everyone picks on me.
Just because I'm a little node of a large cluster.
I bend over to crack RC5 and the winbiff team comes up from behind to number two.
Get cracking for the slashdot team and be a part of supercomputing. Do it in init.d. Do it now.
Any group with enough rabid fervor (*cough*stallman*cough*) will skew test results of their product...
You have a point. Compare that free software does this by cranking up the compilers and introducing a new version of the code versus an evil software company might do this first through its marketing department and many arms of its PR firms.
When the code is freely distributed and not horded, someone is bound to find a better way for immediate release. A bloated and slow moving dinasour might find it just easier to step on the competition rather than try to improve upon it.
Consider me an opionated SOB, as it seems to me that they need some quick dirty way to discredit any criticism of that survey. This article is written as a tool to dismiss Linux advocates. Its just another step in the FUD war as they march the beat of biased benchmarks.
The author of the article starts out painting himself as diverse and unbiased. Then he turns on his fudblaster. This is what we will see while the 2000 series of products is being hyped from its vaporware stage to it being shipped out the door.
Although I prefer to have a totally free package, they are nice by throwing in a few word processors. Sounds like a Linux package for mom to get started with.
There were just a few details on the requirements for installing that caught my eye: minimum hard drive space was 12MB was listed on the first page (nice!), but on the hardware page it listed 160MB to 1.2 GB. I don't think the 12MB is the full graphical install they were talking about.
I get paid twice the average family income doing manufacturing tech work and programming is a hobby at home. Should it be illegal for me to program for the fun of it? I would starve if I couldn't program.
There is a small problem with plugging live devices while the power is hot and its not designed for it. The problem is SCR lockup and it is a condition inside integrated circuits where an input is biased beyond the supply rails that can cause the semiconductor junctions to mimic a triggered SCR. The result would lock down the supply rails and heat the IC, possibly to destruction. I suppose most chips nowdays have this worked out, but it used to be something to think about.
Bad solder joints account for about 50% of television and monitor repairs. At least it was that way when I used to repair them a few years back. It was the heat damage from the high voltage section and other hot spots that caused improperly soldered areas have hairline cracks. The cracks got hotter and the connection would break. Hitting a monitor would bring it back to life in this case. The solution to this would be simply to resolder. This kind of repair is an easy $100-$400, depending on the value. I know a tech that charged $450 for a projection unit, because he "repaired the power supply" this way.
Also related to heat damage are the electrolytic capacitors. They are easily guessed by the toasted and 0darkened areas of printed circuit boards. The oil in them boils away and they go out of tolerance. Bad capacitors cause the picture to get scrunched or out of sync. In the worse case, the sync gets so bad, the flyback circuit burns up including the transformer. While the transformer itself costs about $20-$50, the repair is worth $150 if you like to make money...
Most people now days will junk the bad monitor and try to buy something that is properly designed. It seems like engineers of yesterday built the chassis with absolute maximum ratings in mind to cut costs.
Most monitors will have an operating life. Increase this by keeping them cool. Allow them to breathe. Don't place stuff on top. A small fan could be very promising.
Next time you have a pizza party and use printer paper for everyone to place the pizza (as a napkin), be sure to recycle the paper back into the printer. Tomato stains really liven up stock white paper. It will be sure to rival that expensive colorful graphic paper. Don't be shy with salt and pepper as they might contribute to the background. Coffee stains are an added bonus.
When you fire up the printer for the next job, people will swear its luchtime when the onions hit the fuser sizzling.
Paper jams? No, that means you are not doing it right. Try, try again. Sometimes you have to get the right consistency on the paper ingredients. Be sure to print out a few memos. Make a copy for everyone.
About bodily fluids in a computer... I had a cat that got a little sick on top of the monitor.
Good thing it was shut off while I was at work. When I was home, I turned it on, the screen had a slight flicker. I smelled something burning, but could not determine its source. It got real bad. That is when I discovered the smoke. When the cover was off, I had to scrape the shit off the high voltage section. It looked like it was close to catching fire...
A friend found a great way to destroy a 27 inch TV. Water a plant on the top when the tube is nice and hot. The neck will crack. That TV was a good source of parts for many projects.