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Bar codes are read by a bar code reader. A low-powered laser in a bar code scanner emits a beam that crosses the bar code, generating a series of light and dark reflected flashes. These are read by the sensitive laser detector in the scanner and decoded to produce the numerical values shown on the label. These are compared to the codes in the store's computer to identify the item, look up the price, and add it to the register bill.
Modern self-service check-outs have lasers that scan in two perpendicular directions, to read barcodes in any position relative to the scanner.
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What bar code uses laser beams to read bar codes?
barcode
What is a bar code reader and is it buyable?
Bar codes no longer need specialized equipment to read them. Your smartphone has many apps that can read bar codes. There are apps where you can learn about the many types of bar codes and even generate and print bar codes of your own.
Are lasers used to read bar codes on packages?
often times yes
Is an ATM a bar code reader?
Nope - an ATM reads the magnetic strip on your cash-card. It doesn't read bar-codes.
Do bar codes show where product is made?
Yes it does say but you need a magnifiying glass to read it.
What types of bar codes can be read by the DBIDS pistol scanner?
Barcode 39 and PDF 417
How are bar codes used in the supermarket?
A laser scanner will read each representation of the barcode it can see
What are the modern bar codes in the shapes of squares called?
Those newer bar codes are still bar codes, but they are 2-dimensional bar codes, and we call them quick response(QR) codes.
How can you get a categories for your upcs bar codes?
how can i get categories from newport pleasure ,so i can use my upcs bar codes,like a one time i send my bar codes in and they send me what i send for with my bar codes
Why is us patent bar-coded?
US patents have bar codes that enable automatic scanning devices to detect the bar codes, read them and interpret the numbers represented in the code, such as the patent or application serial number, thus allowing automatic handling of certain patent documents.
What country bar code is 200?
Countries do not have bar codes. They may have calling codes, or postal codes, internationally recognised. Bar codes are usually for items on retail sale.
What is your laser visa number?
Your laser visa number is actually called a bar-coded number, it is read by laser. Bar codes are easy to identify, normally the numbers or numbers and characters will be below the bar code
