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2. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...

3. QR reader boarding pass: How does it work? - Air Travel Forum

   www.tripadvisor.com/ShowTopic-g1-i10702-k4887012...

   You complete OLCI as normal and then select send the boarding pass to a phone option. You then open it and it shows a QR code which is held to the scanners at the airport. Many airlines have specific apps which are geared up to issuing QR boarding passes. Pretty efficient system IMO. Edited: 12 years ago.

4. EICAR test file - Wikipedia

   en.wikipedia.org/wiki/EICAR_test_file

   The EICAR Anti-Virus Test File [1] or EICAR test file is a computer file that was developed by the European Institute for Computer Antivirus Research (EICAR) and Computer Antivirus Research Organization (CARO) to test the response of computer antivirus (AV) programs. [2] Instead of using real malware, which could cause real damage, this test ...

5. Barcode reader - Wikipedia

   en.wikipedia.org/wiki/Barcode_reader

   Barcode reader. A stationary barcode scanner for a conveyor line. A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. [1] Like a flatbed scanner, it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals.

6. where to get PCR with QR code? - Dubai Forum - Tripadvisor

   www.tripadvisor.com/ShowTopic-g295424-i872-k...

   2 years ago. It's best you call your airline for requirements for passengers coming from the US. The UK vaccination record includes a QR code but I have not seen anyone scan the QR code. Report inappropriate content. Adrian R. Druid Hills, Georgia. 1 post. 1 review. 1 helpful vote.

7. How to Create a Contactless Menu with Tripadvisor ...

   www.tripadvisor.com/ForRestaurants/r13843

   Create your QR code: Hover over "Manage Listing" in the top navigation bar and click "Menu" to upload a link to your online menu. If you’ve previously added your menu, make sure your link is up to date. Once you’ve added your menu link, your QR code will be generated. Print your QR code: Choose to either print the code yourself or save the ...