QR Codes

QR codes are square barcodes that contain information that can be retrieved by smartphones. For instance, this QR code contains a URL. Scanning this code will provide the link to the smartphone owner, who will then not need to type the full address on his device to access the information. QR codes can also contain contain email addresses, phone numbers, SMS messages, or plain text. These codes can be used in real spaces (printed out on posters, for instance) or on-screen. QR Codes can be generated at different website, including Kaywa and Google Chart Tools An analogy: QR codes could as well be the short URLs of the physical space.

QR-Codes in Deutschland populär

QR-Codes sind mittlerweile fester Bestandteil des Straßenbildes geworden. QR steht für Quick Response (schnelle Antwort). Vor allem auf Werbeplakaten und Informationstafeln dienen die kryptisch anmutenden Quadrate dazu, zusätzlich Informationen via Internet bereitzustellen. Laut einer aktuellen Erhebung von comScore ist das System bei den Deutschen Smartphone-Nutzern beliebt. 18,6 Prozent von ihnen scannen mit ihren Geräten QR-Codes. Die große Mehrheit der gescannten Codes führen deutsche Nutzer zu Produktinformationen. Ebenfalls häufig verbergen sich Veranstaltungshinweise hinter den viereckigen Code-Sequenzen. Der QR-Code in unserer Grafik funktioniert übrigens. Probieren Sie es aus!
Bild: Statista

n;nj^ – Flickr

Bild: n;nj^

Fingerprint Reader

Anthony Rozario, Springbrook High School Academy of Information Technology in Silver Spring, Maryland checks his fingerprint during the enrollment process for a Smart Card identification card at the United States Department of Agriculture (USDA). Rozario and other students attended the USDA Information Technology Job Shadow Day on Wednesday, April 13, 2011, an annual opportunity for students from local high schools to learn the breadth and depth of information technology at USDA and how it is applied the department. Students toured the Network Operations Center, the Badging Office and had a lecture on geospatial technology. USDA Photo by Bob Nichols.
Bild: USDAgov

Luggage X-ray Scanner at Taj Mahal Hotel, New Delhi

When you enter to Taj Mahal hotel in New Delhi, India, your bags are scanned and you have to walk through a metal detector. Yet both are more theatre than actual security as they don't care if you set off the metal detector and the baggage x-ray only gets a cursory look
Bild: Wayan Vota