Morse Code
What are short and long burst in Morse Code called
dits and dahs
The two digits used in the binary number system
0 and 1
What is the "QR" in QR code short for
What are the 3 big squares marking the corners of the code called?
The finder patterns
What is a patent?
An official document given by the government that protects an inventor's idea, giving them the exclusive right to make, use, or sell their invention so that no one else can copy it without permission
What are two ways Morse Code can be transmitted?
via light, audio, blinking, telegraph, radio
How is binary used today
-Colors in computers
-Video Games
-Music and Movies
Why was it necessary for the QR code to be invented
The 20 character limit of the barcode could not encode larger amounts of information
What does 8 bits equal
Which one is 2D? Barcode or QR code
QR code
In Morse Code how many units is the space between words?
7
Why does Binary use only 1 and 0?
It's super fast
What was the first product ever scanned with a barcode
A 10-pack of Wrigley's Juicy Fruit
What do the dark and light squares on QR codes represent
Dark square = 1 and light square = 0
What is cellular infrastructure?
Network of cell towers, cables and equipment that allows cell phones to send signals to each other
What kind of a machine is used to send short messages over long distances using electricity through wires?
Telegraph
What is Senet?
The ancient Egyptian game that used two-sided throwing sticks to decide how far a player moves
Why is it dangerous to scan a QR code from a unknown source?
They may be stealing your information
Up to how much percentage of the data can be gone for the QR code to still work?
30%
What is a backronyms?
the letters were chosen first, and the meanings were made up later
What is the Morse Code for SOS?
...---...
An ancient divination text that uses patterns of broken and unbroken lines to represent 64 hexagrams
I Ching
The board game that inspired QR code inventor Masahiro Hara to store data on a 2D grid
Go
Why can some QR codes still work even with 30% of the data gone?
Error Correction
Why is the QR code everywhere
The company that Masahiro Hara worked for, Denso Wave, chose not to enforce the patent for the QR code