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Barcodes
Barcodes, and the laser scanners that read them, make it possible to keep track of millions of packages, groceries and railroad cars. New uses are continually being added. Questions and answers about the uses, history and technology of bar codes belong here.
659 Questions
Is a bar code reader an input?
Yes it is. It reads the barcode, and converts it into a digital signal for the computer to decypher.
Where does stamp go on postcard there is no bar code?
Upper right hand corner on the side you write your message on.
You need a barcode to keep track of inventory and assets. Track mail and packages and control logins. The majority of retail stores today are using a barcode system therefore if you want to sell your product through retail stores as well as online stores such as Amazon or eBay you require your product to have a barcode.
codes, the price is available in discount.
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We use barcodes to indentify a porduct which the barcode has been stuck onto
this means when we scan a item the barcode on this item tell us everything we need to know about this item such as price, used by date etc
Do bar codes make security alarms in the store go off?
Sometimes it matters what you buy.like say you just bought a phone and you walk into a clothing store now if the clothing store has one of the security alarms it would go off even though the phone is payed for.
(EDIT) I don't know if you're looking to steal something or you might be just curious, but it really depends on what you buy. Usually you can tell if when you peal off the barcode tag there are little metal rings (Which can be removed). Often valuable objects such as Xbox360's, iPhones, PS3's, ect. have these on them. Sometimes a secretive tag inside the box, which is why I wouldn't recommend stealing an iPhone, Xbox360, or anything else valuable in a box. Items that I am 90% sure do NOT have security alarms in the barcodes are packs of gum, candy bars, cheap lipstick, and anything else cheap or inexpensive. I hope this helps.
A barcode contains the ID number of the product, which can be used by cash registers to gather information from the server such as it's price, and name.
What do the strips mean on a bar code?
The digits of a number in most cases, although some barcodes now can encode ASCII characters too.
What do the numbers under bar codes mean?
http://www.associatedcontent.com/article/1824191/what_upc_barcode_numbers_mean.html?cat=3 The UPC, or Universal Product Code, barcode is a method of marking consumer products so that they may be identified easily. Most UPC barcodes, called version A, and have twelve numbers. However, there are other versions such as the UPC version E with only eight digits, and the ISBN-13 version with thirteen numbers used for books. There are also other barcode systems such as EAN-13 and EAN-8 that are used outside the U.S. But the UPC version A barcode is the most common. What do the numbers in the UPC version A barcode mean? There have been rumors circulating recently stating that the first the digits of any UPC barcode represents the country where the item was made. Many internet users have received emails regarding this. The emails usually also give a listing of three digit numbers and their corresponding country. These emails are generally not from spammers, but from friends or relatives relaying this information with good intentions. Since many American consumers do not want to buy products from certain foreign countries, this seemed like a great way to tell where the product was from. Believing the three digit story in the emails, American consumers who wanted to buy only American products, had, it seemed, a way of assuring the origin of a product. And they could avoid buying products from countries that sell inferior products, have no laws regulating food processing and use processing methods that are illegal in the U.S. However, the three digit story is untrue. The senders of these emails were misinformed and those who received them were unintentionally misled. The first three digits of the UPC barcode does not represent the country where the product was made. So what do those numbers really mean? The first number represents the type of product. For example, a zero indicates regular UPC codes, a three means that it is an item that needs to be weighed at the store, and a four is used for drug and health type items. The next five numbers are the manufacturer's identification number. This is assigned to the manufacturer or the distributor of the item by the UCC Council, the organization that coordinates barcode standards. The next five numbers are the manufacturer's or distributor's item number for that individual product and is assigned by the manufacturer or distributor. The last number, called the check digit, is the most interesting number of the barcode. It is gotten by a calculation using the other eleven numbers of the code. For example, the UPC barcode pictured with this article is 073435000068. We can determine what the 8 represents by the following: First the numbers that are in the odd positions are added together. In this example 0 + 3 + 3 + 0 + 0 + 6 = 12. The sum is then multiplied by three, 12 x 3 = 36. Then the numbers that are in the even positions are added together. In this example 7 + 4 + 5 + 0 + 0 = 16. The two numbers are then added together. In this example 36 + 16 = 52. Then we determine what number when added to 52 becomes a multiple of ten. In this case 52 + 8 = 60, where 60 is the multiple of ten and 8 becomes the last digit in the barcode. Every time a barcode if read, the scanner performs this calculation to make sure the item is scanned correctly. Now that you know what those UPC barcode numbers really mean, you can disregard any future emails from well meaning associates regarding UPC barcodes.
Bar codes are used so that businesses can track their inventory. Once bar coded, businesses can track products in their warehouse.
How do you connect bar code reader to computer?
Plug in the cable to an appropriate port. Driver software may also need to be installed.
Why are numbers on a bar code important?
Numbers on a bar code are important because it is how the scanner recognizes the what product you are trying to buy. The lines and dashes are important to this as well.
Barcodes are to help stores keep control on how much stock they have got
When was the barcode invented?
The Barcode Scanner was Invented and Patened in 1952 by Norman Joseph Woodland of Ohio, USA
When were barcodes introduced?
The first patent for a bar code type product (US Patent #2,612,994) was issued to inventors Joseph Woddland, Jordin Johanson and Bernard Silver on October 7, 1952.
It was not until 1966 that barcodes were put to commercial use and they were not commercially successful until the 1980s.
What is output data of bar code reader?
Typically just the data that the reader encountered. If it's a UPC code the scanner would output the data on the barcode.
Most scanners can also be programmed to include some kind of preamble data, which may simply be a beginning of text marker or an identifier from the scanner.
Scanners can also send "post" data, such as a <CR> or some other kind of identifier that indicates that the scanner has completed a good scan.
Scanners can be programmed to ignore some types of barcode and not others.
It all depends on the needs of the individual application.
What is the button on a bar code scanner for?
After inputing the communication line into the button of the barcode scanner, you can use it. Recently Sumlung tech. has a creative product special for the button to add more functions to the barcode scanner.
