Changing the subject totally – the use of QR codes
Although QR codes were in existence before the covid pandemic it was during this time that their use became more common. QR stands for “Quick Response”. So, what is a QR code? Putting it simply they are a two-dimensional version of a barcode. The one shown here is from a table in a Spanish bar. Scanning it using a smart phone brings up their menu and prices on your phone.
The first QR code was made by a Japanese company called Denso Wave, who made and supplied parts for the Toyota Car Company. They were designed to be attached to all the component parts they manufactured for Toyota car production to accelerate the logistic processes of supplying these car parts to Toyota.
Now they are everywhere but particularly used in pubs, and restaurants where their use with a mobile phone means the organisation doesn’t have to produce paper or card menus. (thus, avoiding possible transmission of infections through the physical handling of the tradition menus).