|Product Name||The Pelican Brief|
|Category||Electronics / Photography: A/V Media: Movie / TV|
|Amazon.com||Buy on Amazon ~ 0790748169|
|Price New||0.99 US Dollars (curriencies)|
|Price Used||0.01 US Dollars (curriencies)|
|Rating||PG-13 - Parents Strongly Cautioned|
|Trailer||Watch The Trailer|
|Run Time||141 minutes|
|Cast||Denzel Washington, John Heard, Julia Roberts, Sam Shepard, Tony Goldwyn|
|Director||Alan J. Pakula|
|Run Time||141 minutes|
|Format||Closed-captioned, Color, Original recording reissued, NTSC|
|Run Time||141 minutes|
|Long Description||Two Supreme Court Justices have been killed. Now a college professor, who clerked for one of the two men, who's also having an affair with one of his students, is given a brief by her, that states who probably, wanted to see these two men dead. He then gives it to one of his friends, who works for the FBI. When the FBI director reads it, he is fascinated by it. One of the president's men who read it, is afraid that if it ever got out, the president could be smeared. So, he advises the president to tell the director to drop it, which he does. But later the professor and the girl were out and he was drunk and when he refused to give her the keys she stepped out of the car. When he started it, it blew up. She then discovers that her place has been burglarized and what was taken were her computer and her disks. Obviously, her brief has someone agitated. She then turns to her boyfriend's friend at the FBI, he agrees to come meet her but before he does someone shoots him and takes his place. At the meeting, he was about to kill her when someone shoots him. She then decides to turn to Gray Grantham, an investigative reporter, who was contacted by someone who says he has info on the killings but backed out at the last minute. He then meets her and tells her what her brief is, and basically, the man she suspects is a good friend of the president, who is trying to manipulate the outcome of a trial that is now before the Supreme Court. Grantham tells her that her brief can harm the president and all what they have are theories, he asks her to help him but she wants to leave the country. Then Grantham's editor tells him that they have nothing; that he should drop cause the man she implicated is extremely powerful. Grantham's about to drop it when she says that she will help him. But can they stay alive?|
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Article of interest
Barcodes are a graphical representation of information that can be easily read by machines. People read text easy enough but machines find this to be too complex so we use barcodes to simplify the process.
Barcodes can store numbers, letters and all the special characters. What can be stored in the barcode depends on which type of barcode is being used. But the basics of how a barcode works is the same regardless of what type of code it is, what information is stored in the barcode or what type of scanner is being used.
It all starts with the scan. The scanner, regardless of which type you are using, will examine the barcode image. The lines (or blocks in the case of 2D barcodes) will either reflect or absorb light. When we look at the barcode, we tend to see the dark stripes and think of those as the important parts. Those are the parts that absorb the light and the white parts reflect the light. So the scanners tend to see the barcodes in reverse of how we think of them. But the dark and light portions of the code on their own don't automatically become the information stored in the code. In most cases, it is the relative placement and size of each dark and light stripe (or block) that make up the information. There are also special markers that help the scanner know which direction the barcode is facing when it is scanned. This allows the scanning process to work even if the barcode is upside down when it is scanned. The scanner simply processes the scanned data in reverse in this case.
Taking a look at an oscolloscope screen as a scanner passes over barcode, you can see that the stripes reflect back light and the scanner registers the changes as high and low levels. So what looks like a simple image is really a rather complex set of layered encryption to store the data. The encryption isn't done to hide the information in this case. Instead it is done to make it easy for the machine to read the information. Since the base language of machines is binary (1 and 0) it is easy for them to read this type of information even if it takes several steps to turn this back into something that people can understand.
The size of each high and low are combined to make binary data. A series of 1 (one) and 0 (zero) values which are strung together then decoded into the actual information. Up to this point, the process is the same for all barcodes regardless of how they are stored. Getting the lines or dots into binary is the easy part for the machine. The next step is to make this binary code into something useful to people. That step depends on which type of barcode is being scanned. Each type of barcode has its own encoding methode. Just like human languages, what seems to be two similar words (or barcodes in this case) could actually be two very different values even though they have the same basic letters (or bars).
So you can see that the scanning devices need to know not only how to turn the bars or dots into binary, but after they have done that they need to know how to turn that binary string into the original information. But regardless of the encoding process the basic steps are the same. Process the light and dark areas, convert them to binary, decode the binary, pass the information on to the receiving device which is normally a computer program of some sort.
Once the decoded data reaches the computer program, there is no telling how the information is to be used. The grocery store will use the information to keep track of the products you purchased as you go through the register. A manufacturer will use the code to identify where they are storing their parts. And shipping companies use the codes to keep track of the packages they are delivering.
Now that you know a little about the mechanical portion of the process, take some time to learn about the different types of barcode scanners and the different ways the information can be encoded into barcodes.