QR codes: how an old technology could help contact tracers keep the pandemic in check
Shops, cafes and pubs now can keep logs of their visitors who use the QR code check-in on their phones
Businesses across Australia are being encouraged or required to keep logs of who has been in their establishment in case of a Covid-19 outbreak.
Many choose to use paper and pen to keep records, but increasingly QR code posters are up so people can check in via their phones.
What is a QR code?
Quick response code is a computer-generated image that looks a bit like a barcode, and when scanned by a phone with a QR code reader (many phones have this built into the camera app), it’ll open a website the code links to.
They were designed in Japan in the mid-90s, and became more popular with the broader public with the advent of cameras on smartphones. QR
