Global Positioning System
.... Standard Positioning Service or SPS is a positioning and time service which is available to all GPS users on a continuous, worldwide basis with no direct charge." (Tycho) The SPS is provided on the L1 frequency, which then will code a navigational message. The SPS accuracy is 100-meter horizontal, 156-meter vertical, and 340 nanoseconds time, and in total the SPS is ninety-five percent accurate. (Utexas) The Department of Defense also degrades this service so those consumers can use this service.
Se .....
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“Sin In The Global Village”: Privacy In Cyberspace
.... address) back to its origin. In short, people’s visions about a totally anonymous Internet are false because of the electronic trail that is left for others to find.
Linda Tripp, who taped her conversations with the former White House intern Monica Lewinsky, exposed President Clinton’s recent oral sex scandal by means of surveillance. Wright is suggesting that this could happen to anyone. Computer surveillance isn’t all that uncommon these days so people should look out for what they write and wher .....
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Protocols And Interfaces
.... An RF carrier signal that is digitally modulated to create a bit stream. This bit stream incorporates forward error correction, interleaving and other techniques to mitigate the effects of interference and weak signals that can produce high-bit-error rates.
Link layer Usually a specialized radio protocol that employs a form of medium access optimized for the radio environment. Most link protocols involve interactions between the wireless modem and a base station, and mobile units do not communicat .....
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Internet Censorship
.... banned from using the school´s internet (Heller). If the kids keep doing this there will soon be no internet for the kids to use.
The internet has many different types of pages, but of all the educational or informative pages there are always the “ black sheeps” . On the internet these are bomb/drug formulas, racist pages and pornography, as well as others. Bomb and drug formulas have always been available on the internet for a long time (since the internet became popular). ( Net Nanny) . T .....
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Computer Crimes
.... and the stakes raise in the hacker’s ego game. Only seventy-five computer crime prosecutions were reported in the United States in 1986, according to the National Center for Computer Crime Data in Santa Cruz, Calif. By 1989, that number jumped to 500 prosecutions. Computer crimes that year cost businesses and banks and, ultimately, consumers about $500 million. "As the use of computers has increased, so has their criminal misuse" (Parker 54:G13). Computers are used to obtain credit card numbers, wh .....
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History Of The Internet
.... the Internet. This would lead to need for regulation in what is acceptable content on the Internet, and how the first amendment has blocked many policy attempts trying to regulate the technology.
We can point to the fact that emergence of any new technology is always the contribution of several intertwined social factors over a period of many years. The Internet as we know it today is no exception. We can show that the beginnings of the Internet started in the 1940's and took over in the 50's to b .....
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The Growth Of The Internet
.... for accessing databases.
This all changed in 1989. A researcher at CERN (a big European physics laboratory) named Tim Berners-Lee started to work on hypertext. By using hypertext he could link together all the different kinds of information available on the Internet.
Berners-Lee called the software pack the World Wide Web.
For the World Wide Web to work, each page has it’s own address that the web recognizes using a system called HTTP (Hypertext Transport Protocol). Each page has to be written .....
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The Growing Popularity Of Computers
.... kind of computing power that 10 years ago was found only in large corporations. Yet people now take this for granted -- and want more. They want to do many of the things they can do on their PC regardless of where they are or what device they are using -- whether it's a palm-size computer, a Web-enabled cell phone, an Auto PC or a smart television like WebTV. A combination of sophisticated software, powerful microprocessors, wireless technology and high-bandwidth connectivity is starting to make that a r .....
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All About Disk Geometry And The 1024 Cylinder Limit For Disks.
.... source as a reference.Other versions may differ a bit.
2.Booting
When the system is booted, the BIOS reads sector 0 (known as the MBR - the
Master Boot Record) from the first disk (or from floppy), and jumps to the code
found there - usually some bootstrap loader.These small bootstrap programs found
there typically have no own disk drivers and use BIOS services.This means that a
Linux kernel can only be booted when it is entirely located within the first
1024 cylinders.
This problem is very easily so .....
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The Computer Market And Retailers: A Saturated Market
.... dealers are crowding shopping districts, and some analysts think the
market is becoming saturated. In Connecticut alone, the two major shopping
districts, Buckland and the Berlin Turnpike, for instance, shoppers can compare
equipment and costs at Nobody Beats the Wiz, Lechmere, Circut City, Staples, and
Office Max - all within minutes in one another.
Yet, computer retailers insist that there has been a need for more stores -
specifically their own - citing a nearly constant updating of equipment
a .....
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America Online To Unveil Flat Fee For Internet Access
.... the service and make it more
compelling than rivals.
Since America Online's price is lower people will tend to use America
Online more. This is a competitive market as America Online lowers their price,
other competitors will lower their price too. This will happen until they
reach the Equilibrium.
By staying in this fast-moving industry, America Online has unveiled a
set of features that include enhancements to listening to audio on-line, better
methods for viewing video on-line, and tools for m .....
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Maglev Consequences
.... percent. Adding to the congestion and delay is
increased commuter and regional air traffic. Those short distance flights take
valuable landing slots that could be used for larger planes on more profitable,
longer flights. With the maglev vehicles the shorter trips excluding access
time can be cut a lot. With a study of 16 major corridors of travel, less than
300 miles in length, they studied how well the maglev vehicles could help, and
in 10 out of the 16 the time could be cut at least slightly. Al .....
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Satellites
.... emerges from the rocket's protective shroud,
radiotelemety regularly reports on its health to round-the-clock crews of ground
controllers. They watch over the temperatures and voltages of the craft's
electronic nervous system and other vital "organs", always critical with
machines whose sunward side may be 300 degress hotter than the shaded part.
Once a satellite achieves orbit--that delicate condition in which the pull of
earth's gravity is matched by the outward fling of the crafts speed--subtle
.....
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Internet Access: Flat Fee Vs. Pay-Per-Use
.... change if they had to pay for each article they looked at in a
magazine or newspaper.
Yet many of the most interesting things we learn about or find come from
following unknown routes, bumping into things we weren't looking for. (Indeed,
Thomas Kuhn makes the claim that, even in the hard sciences, real breakthroughs
and interesting discoveries only come from following these unconventional routes
[Kuhn, Thomas, The Structure of Scientific Revolutions, Chicago: University of
Chicago Press, 1962]).
And .....
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New Age Of Technology
.... itself to the vehicle
every time you measure. If you reposition the beam after the first measurement,
or if the car moves, the beam will automatically re-calibrate from its new
position, still producing the same measurement results.
Before repairs, Shark provides you with the ability to prove existing
damage. This information is good to the vehicle owner and insurance company
because it not only explains the cost of repair, but eliminates unnecessary work
and surprises.
During the straightening proce .....
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