I'd say the main reason that has made Windows passable for SCADA applications is because it's used only as a HMI and supervisory platform; the main system is not controlled by a Windows application, it's done instead by a dedicated controller, most likely a PLC (or a network of PLCs) or by a DCS which runs on a proprietary real time OS. If the Windows workstations or servers that monitor the process go down, the controllers keep controlling the process as they normally do; so Windows lack of reliability (although it has improved a lot these years) has not been a problem.
Windows lack of security has not been a real concern for the reason you pointed out; but as other posters say, the need to feed realtime plant floor data to managing and corporate intranet has led to practices that increase the vulnerability of these control networks.
Most popular SCADA software vendors solutions (Wonderware, Rockwell Software, Intellution) are Windows based; Linux solutions are hard to find and other Unix variants are generally more expensive, proprietary and in many cases legacy technology. If you are in the machine automation / SCADA industry, Windows is sadly the norm there.
All electronic products I know of use DC operationally
Some alarm clocks get their timebase from the frequency of the AC line. I've seen one that had a little 50/60 Hz switch, and if it wasn't correctly set the clock would drift very fast.
how about: small car + video camera + pole + LCD screen on dash I was thinking the same while reading the comments. I guess it would suck for the aerodynamics, but the thing could be made to retract itself or fold at certain speed, and to deploy when the car deacelerates to heavy traffic conditions, when it would be useful to see the traffic around and the aerodynamics don't matter much.
Wikileaks can't very well violate an NDA that they never signed onto and all that.
While Wikileaks can't be held liable for breaking a NDA that never signed onto, they could be sued for Tortious interference by helping a third party to break that NDA.
It's as simple as this. The universe is completely in our collective minds. When I say our, I do not mean humans, I mean the collective self awareness of the universe.
Are these ideas based on the work of specific philosophers or did you develope them by yourself? I'm not challenging you or what you have said; I'm just curious about the subject.
Bell's "speaking telephone" was not universally welcomed. Some people dismissed it as a scientific toy of little value. Others saw it as an invasion of privacy.
Who would have thought there were slashdoters back then? Maybe time travel is really possible.
Since when "Believing everything in the bible" was the Sine-qua-non condition for a person to be called a Christian?
A person that holds Christian beliefs, but does not agree with certain parts of the Bible, can be called "heretic" or "non true Christian" by a fundamental Christian; but it doesn't matter to the fact that his theological beliefs are based on Christianity, and therefore, the most sensible designation for that person is 'Christian'. Biblical fundamentalism is a form of Christianity, but not the only one in society, therefore Fundamentalist Christians are not the ones with the power to say who is Christian and who is not.
You may say that person's beliefs are inconsistent (because they're based on the same scriptures he's rejecting parts of) but that is irrelevant to whether if he can be called 'a Christian' or not. By the way, I don't think his beliefs are inconsistent, they are just inconsistent with the parts of the Bible he rejects.
That's true for the US , but in other countries manual transmission is more common. In those circumstances talking on the cell phone while driving is both a physical control problem and an attention problem. Using a headset at least solves the control part of it.
Not only was the 'Power' key next to 'Enter', but was also the bottom-left key on the block above the inverted T, which happens to be the place where you expect the 'Del' key to be; so many times you would hit that key when you just wanted to delete a character.
God, I hated those keyboards!
Re:binary (possible spoiler-warning)
on
Futurama Returns!
·
· Score: 1
And you sir, win the geekest post of the day. Congratulations!
Slashdot Mirror
I'd say the main reason that has made Windows passable for SCADA applications is because it's used only as a HMI and supervisory platform; the main system is not controlled by a Windows application, it's done instead by a dedicated controller, most likely a PLC (or a network of PLCs) or by a DCS which runs on a proprietary real time OS. If the Windows workstations or servers that monitor the process go down, the controllers keep controlling the process as they normally do; so Windows lack of reliability (although it has improved a lot these years) has not been a problem.
Windows lack of security has not been a real concern for the reason you pointed out; but as other posters say, the need to feed realtime plant floor data to managing and corporate intranet has led to practices that increase the vulnerability of these control networks.
Most popular SCADA software vendors solutions (Wonderware, Rockwell Software, Intellution) are Windows based; Linux solutions are hard to find and other Unix variants are generally more expensive, proprietary and in many cases legacy technology. If you are in the machine automation / SCADA industry, Windows is sadly the norm there.
Believe at most 10% of what a politician says and 0% of what a politician says another rival politician said.
Can't say much for a group that named their phone after the Spanish word for booger (moco)
Well, Nissan did it too.
Product names that aren't so good in spanish haven't stopped Mazda or Kia
Some alarm clocks get their timebase from the frequency of the AC line. I've seen one that had a little 50/60 Hz switch, and if it wasn't correctly set the clock would drift very fast.
While Wikileaks can't be held liable for breaking a NDA that never signed onto, they could be sued for Tortious interference by helping a third party to break that NDA.
Yes, I saw it on 'The Insider'
Are these ideas based on the work of specific philosophers or did you develope them by yourself? I'm not challenging you or what you have said; I'm just curious about the subject.
Who would have thought there were slashdoters back then? Maybe time travel is really possible.
You don't know what SELinux is, do you?
You know the lawyers at RIAA are insane when actual headlines like these read like if they were from The Onion
I thought it had already happened when blogs were invented
A person that holds Christian beliefs, but does not agree with certain parts of the Bible, can be called "heretic" or "non true Christian" by a fundamental Christian; but it doesn't matter to the fact that his theological beliefs are based on Christianity, and therefore, the most sensible designation for that person is 'Christian'. Biblical fundamentalism is a form of Christianity, but not the only one in society, therefore Fundamentalist Christians are not the ones with the power to say who is Christian and who is not.
You may say that person's beliefs are inconsistent (because they're based on the same scriptures he's rejecting parts of) but that is irrelevant to whether if he can be called 'a Christian' or not. By the way, I don't think his beliefs are inconsistent, they are just inconsistent with the parts of the Bible he rejects.
Thank you, Captain Obvious. We've been expecting you.
That's true for the US , but in other countries manual transmission is more common. In those circumstances talking on the cell phone while driving is both a physical control problem and an attention problem. Using a headset at least solves the control part of it.
I hope they won't make you buy only HP gas cartridges
whooosh!
Not only was the 'Power' key next to 'Enter', but was also the bottom-left key on the block above the inverted T, which happens to be the place where you expect the 'Del' key to be; so many times you would hit that key when you just wanted to delete a character.
God, I hated those keyboards!
And you sir, win the geekest post of the day. Congratulations!
Or Google Search for Chuck Norris
Damn! Where are my mod points when I need them?
You owe me a new sarcasm detector!
Because said car doesn't have a trunk?