They say "Dogs have Owners, Cats have Staff."
Kitty waits for the human to come home after work: “Feed me, servant!”
Founded in 1776 San Francisco is known for its cool summers, fog, steep rolling hills, architecture, and famous landmarks.
It rose to be the heart of the "hippie" counterculture and the peace movement as well as a center of the information technology industry.
San Francisco and its surrounding counties are home to tech companies like Apple, Fitbit, Google, Dropbox, Facebook, Reddit, Square Inc., Dolby, Airbnb, Weebly, Yelp, Pinterest, Twitter, Uber, Lyft, Mozilla, Craigslist, and others.
Quick Response codes were first used in the Japanese automotive industry and became popular due to greater storage capacity compared to barcodes.
QR codes are used for product tracking, item identification, time tracking, document management, and general marketing.
When a QR code is read by a smartphone it can display text to the user, open a URL, save a contact to the address book or compose text messages.